DOCSLIB.ORG

Mandibular Centricity: Centric Relation

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Mandibular Centricity: Centric Relation Mandibular centricity: Centric relation Curtis M. Becker, DDS, MSD, a David A. Kaiser, DDS, MSD, b and Conrad Schwalm, DDS, MSD c University of Colorado Health Sciences Center, Denver, Colo.; and University of Texas Health Science Center at San Antonio, San Antonio, Texas Centric relation can be a confusing term because it continues to evolve in meaning. This article pre- sents a discussion of the historical aspects of centric relation. Guidelines to decide when to use ceu- tric relation in clinical dentistry are included. (J Prosthet Dent 2000;83:158-60.) Nearly all concepts of dental occlusion have sure on the chin." Mandibular manipulation increased embraced the practice of mandibular centricity, with in popularity with more interest in gnathologic philos- the exception of cranial orthopedics 1-3 (also called oral ophy. Mandibular manipulation gained in acceptance orthopedics). Early writers loosely referred to and authors began to warn of strain to condyles. In mandibular centricity as centric relation (CR), but they 1951 Robinson 11 stated that the mandible "can be rarely defined this jaw position adequately. In 1929, retruded beyond what we should consider centric into Hanau 4 defined centric relation as the position of the a strained retruded position." mandible in which the "condylar heads are resting The debate to accurately define the "centric jaw rela- upon the menisci in the sockets of the glenoid fossae, tion" escalated, and new terms began to appear in the regardless of the opening of the jaws." He also stated literature. Terms such as posterior border closure, relaxed that this relation is "either strained or unstrained." closure, bracing position, hinge position, ligamentous Hanau 4 preferred the unstrained centric relation associ- position, retruded contact position, and terminal hinge ated with an acceptable opening for a reference "jaw position merely added confusion. The various disci- relation. "4 In 1934, Niswonger 5 described CR as a plines within dentistry could not agree on a definition position where the patient can "clench the back teeth." of centric relation. The periodontal textbook by Gold- Schuyler6 defined the "centromaxillomandibular" posi- man and Cohen 12 defined centric relation as the most tion or centric position as "upper lingual cusps are rest- posterior relation of the mandible to the maxilla from ing in the central fossae of the opposing lower bicus- which "lateral movements can be made." Glickman 13 pids and molars." stated that centric relation was "the most retruded In 1946, Thompson 7 acknowledged the lack of position to which the mandible can be carried by the knowledge that was the basis of clinical procedures and patient's musculature." declared that "some believe that, in centric relation, the Graber 14 thought that centric relation was an condyles are in the most retruded position in the los- "unstrained, neutral position of the mandible" and "is sac, while others maintain they are not." The pioneers deviating neither to the right nor to the left and is nei- in prosthodontics rarely advocated manual manipula- ther protruded nor retruded." Boncher 15 stated "cen- tion of the mandible to achieve centric jaw registration. tric relation is the most posterior relation of the In 1923 Needles,8 used an intraoral arrow point trac- mandible to the maxillae at the established vertical rela- ing in which "the patient retruded the mandible to its tion." Schluger et all6 declared that centric relation was fullest extent." Schuyler9 advised the use of wax inter- "the position assumed by the mandible relative to the occlusal records and "the patient may be requested to maxilla when the condyles are in their most rearmost place the tip of the tongue far back on the palate to and midmost position in the glenoid fossae." This hold it there while closing. It is quite impossible for definition is extremely close to the gnathologic RUM one to protrude the mandible when this position of the definition purposed by McCollum and Stuart, 17 in tongue is retained." Meyer, 1° who used the functional- which the condyles are in a "Rearmost, Uppermost, ly generated path technique, did not attempt to manip- and Midmost" (RUM) position in the glenoid fossae. ulate the mandible, other than to instruct the patient In an effort to standardize the definitions of com- occasionally in "getting started by exerting a little pres- monly used terms in dentistry, The Academy of Prosthodontics (formerly The Academy of Denture Prosthetics) publishes a Glossary of Prosthodontic Terms. aAssociate Clinical Professor, Department of Fixed Prosthodontics, This glossary is revised periodically with 7 editions School of Dentistry, University of Colorado Health Sciences Cen- since it was first published in 1956. In every update, ter. bAssociate Professor, Department of Prosthodontics, University of the definition of centric relation has been modified. Texas Health Science Center at San Antonio. Avant 18 declared the "seven definitions of centric rela- cprivate Practice, Rockville, Md. tion" that appeared in the 2nd edition (1960), as 158 THE JOURNAL OF PROSTHETIC DENTISTRY VOLUME 83 NUMBER 2 BECKER, KAISER, AND SCHWALM THE JOURNAL OF PROSTHETIC DENTISTRY "regrettable" and argued that centric relation is a bone- 3. Use MIP when there are 3 to 6 units of anterior to-bone (mandible-to-maxilla) relation, whereas cen- FPDs or RPDs. tric occlusion (MIP) is a tooth-to-tooth (mandibular 4. Adjust the occlusion of the remaining posterior teeth to maxillary teeth) relation. Schweitzer 19 lament- teeth to CR and build occlusion to CR if only 2 to 3 ed, "with almost 40 definitions of centric, it would bc posterior teeth remain in contact after preparation of presumptuous on my part to offer another." the abutments. Schluger et al ~6 admitted that the word centric may 5. Use CR when there are no posterior occlusal con- be the most "controversial term in dentistry," not only tacts remaining at the desired vertical dimension of from a semantic point of view but also from a concep- occlusion. tual point of view. They admitted that these serious dis- If a clinical decision is made to place the patient in parities in concept "may never be resolved. ''16 The an occlusal scheme based on centric relation for options most recent edition of The Glossary of Prosthodontic 1 to 3, then occlusal adjustment, based on principles on Terms (7th ed, 1999) defined centric relation as "the biologic occlusion, 22 should be accomplished before maxillomandibular relationship in which the condyles fabricating a prosthesis. articulate with the thinnest avascular portion of their The principles of biologic occlusion (and occlusal respective disks with the complex in the anterior-supe- adjustment) are as follows: rior position against the shapes of the articular emi- 1. No interference bewveen CR and MIP. nences. "20 The authors of the seventh edition also list- 2. No balancing contacts in eccentric jaw move- ed 7 other acceptable definitions of centric relation and ments. quoted several personal communications f?om respect- 3. Cusp-to-fossa occlusal scheme. ed members of the dental profession including Drs 4. A minimum of one contact per tooth, but multi- Ramst]ord, Ash, Lang, and Kelsey. The authors of the ple contacts per tooth are desirable. 5th edition (1987) of The Glossag~ of Prosthodontic 5. Canine rise or group function in lateral mandibu- Terms stated, "This term (CR) is in transition to obso- lar movement. lescence. ''21 Most agreed that the more attempts to 6. No posterior contacts with protrusive jaw move- define this critical concept of clinical dentistry, the ments. more confusing it became, 7. No cross-tooth balancing contacts. The current definition of CR is considerably differ- 8. Eliminate all frenitus, if possible. ent from definitions used by Hanau, Niswonger, It is unreasonable to demand that the condyles Schuyler, and others. These clinical dentists recorded remain in their hinge position for long periods when centric relation quite differently than today, but the teeth are in a maxillary intercuspal position. It is not concept of mandibular centricity remained constant, unreasonable to ensure that there are no cuspal inter- even though the definition and techniques have ferences between CR position and the MIP and that evolved and will probably be continuously modified. nonworldng contacts are eliminated. Furthermore, Schweitzer 19 observed that most experi- SUMMARY enced dentists have been able to locate centtic relation for the average patient they treat. Experienced dentists This article presents a brief discussion of the evolu- may not be able to give a precise definition of this con- tion of dentistry to define the term centric relation. troversial position, but they are able to record it. 19 Guidelines to determine when to use centric relation in clinical restorative dentistry were also presented. CLINICAL IMPORTANCE OF CENTRIC RELATION REFERENCES Only a sparse number of patients function naturally in 1. Gelb H. The temporomandibular joint syndrome: patient communication centric relation occlusion; but centric relation is an and motivation. Dent Clin North Am 1970;14:287-307. invaluable position in restorative dentistry. The question 2. Gelb H. Evaluation of static centric relation in the temporomandibu[ar joint dysfunction syndrome. Dent Clin North Am 1975;19:519-30. for a dentist is when is the occlusal scheme restored in 3. Gelb H. Clinical management of head, neck and TMD pain and dysfunc- CR and when in the habitual maximal intercuspal posi- tion. Philadelphia: WB Saunders; 1977. p. 32-8. tion (MIP) of the patient? The answer is not absolute 4. Hanau RH. Occlusal changes in centric relation. J Am Dent Assoc 1929;16:1903-15. because each patient possesses a different set of clinical 5. Niswonger MF. The rest position of the mandible and centric relation. J circumstances that influence this decision. Am Dent Assoc 1934;21:1572-82. Some guidelines for this clinical decision are as 6.
Load more

Recommended publications
  • Changing Vertical Dimension: a Solution Or Problem? by Peter E
    Continuing Education Changing Vertical Dimension: A Solution or Problem? by Peter E. Dawson, DDS Abstract Much of what dentists know about the vertical dimension of occlusion (VDO) has changed from the dogma of a few years ago. Dentists who understand the fundamental concepts of VDO can use those concepts to great advantage in treatment planning. Failure to understand can (and often does) lead to missed diagnoses, failed treatment outcomes, and serious examples of unnecessary overtreatment. This article explains some of the principles that make changes in VDO advantageous and predictable, and exposes some of the misconceptions that are problematical. Learning Objectives After reading this article, the reader should be able to: recognize the importance of vertical dimension as it applies to treatment planning for anterior teeth. discuss why posterior segmental bite-raising appliances are contraindicated. describe how changes in vertical dimension affect buccolingual relationships of posterior teeth. explain why the effect of changing vertical dimension is best studied on face-bow mounted diagnostic casts. The Concept of Balance The equilibrium of the entire masticatory system is dependent on balance.1 The mandible at rest is balanced between the resting lengths of the elevator muscles and the depressor muscles (Figure 1 View Figure). Anything that affects the resting length of either group of opposing muscles can affect the critical relationship of the mandible with the maxilla at the resting position. Because the teeth are not in contact at the rest position and the mandible-to-maxilla relationship is not consistent,2,3 the rest position is not an accurate determinant of the jaw-to-jaw relationship at maximum intercuspation.
    [Show full text]
  • Restoration of the Periodontally Compromised Dentition
    Restoration of the 27 Periodontally Compromised Dentition Arnold S. Weisgold and Neil L. Starr NATURAL DENTITION DENTAL THERAPEUTICS: WITHOUT IMPLANTS IMPACT OF ESTHETICS DENTAL THERAPEUTICS: WITH IMPLANTS Outcome-Based Planning PERIODONTAL BIOTYPES Considerations at the Surgical Phase Transitional Implant-Assisted Restoration ROLE OF OCCLUSION Final Prosthetic Phase of Treatment Long-Term Maintenance/Professional Care TREATMENT PLANNING AND TREATMENT SEQUENCING WITH AND WITHOUT ENDOSSEOUS CONCLUSION IMPLANTS: A COMPREHENSIVE THERAPEUTIC APPROACH TO THE PARTIALLY EDENTULOUS PATIENT Diagnostic Evaluation Esthetic Treatment Approach Portions of this chapter are from Starr NL: Treatment planning and treatment sequencing with and without endosseous implants: a comprehensive therapeutic approach to the partially edentulous patient, Seattle Study Club Journal 1:1, 21-34, 1995. Chapter 27 Restoration of the Periodontally Compromised Dentition 677 !""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""#$ The term periodontal prosthesis1,2 was coined by Amsterdam when it is achieved in concert with all the functional about 50 years ago. He defined periodontal prostheses needs of the dentition. as “those restorative and prosthetic endeavors that are absolutely essential in the treatment of advanced perio- PERIODONTAL BIOTYPES dontal disease.” New, more sophisticated techniques are currently available, and with the advent of endosseous Ochsenbein and Ross,15 Weisgold,16 and Olsson and implants3
    [Show full text]
  • A Simplified Method of Centric Relation Record Saafi Jilani*, Chebil M M, Debbabi I, Jabnoun N Faculty of Dental Medicine, University of Monastir, Tunisia
    International Journal of Dentistry and Oral Health Volume 4 Issue 6, June 2018 International Journal of Dentistry and Oral Health Research Article ISSN 2471-657X A Simplified Method of Centric Relation Record Saafi Jilani*, Chebil M M, Debbabi I, Jabnoun N Faculty of Dental Medicine, University of Monastir, Tunisia Abstract The definition of CR has evolved over the years into the most controversial subjects than any other dental concept in dentistry.This ranges from a retruded posterior position, to superior position and then to an anterior superior position. Recording the centric relation is the most crucial step for obtaining a prosthesis with an occlusion entirely in harmony with the stomatognathic system.We used an direct interocclusal record in which is the oldest type of Centric Relation record .This physiologic method needs normal functioning of the patient’s proprioception and the tactile sense in order to make an accurate record.In our technique interocclusal wax was used to record maximum inercuspation (MI) followed by recording centric relation (CR ) to obtain a reproducible mandibular position in a dentulous subject Abbreviations: CR: centric relation, MI: maximum intercuspationCCR: centric relation, MI: maximum intercuspationR: centric relation, MI: maximum intercuspation Keywords: Centric Relation, Maximum Intercuspation, Record, Wax, Chin Point Guidance a purely rotary movement about the transversal horizontal axis (GPT- Corresponding author: Saafi Jilani 8) (Glossary of prosthodontic terms)The indications of recording in centric relation is to perform an occlusion analysis, in fixed denture Faculty of Dental Medicine, University of Monastir, Tunisia. prosthesis for long span bridge , in removable denture prosthesis E mail: [email protected] when there is a loss of vertical dimension and ,obviously in complete removable denture prosthesis [4,5] Citation: Saafi Jilani et al.
    [Show full text]
  • Occlusion Confusion
    second opinion Occlusion Confusion by Prabu Raman, DDS, MICCMO, LVIM Second opinions are common in health care; whether a doctor is sorting out a difficult case or a patient is not sure what to do next. In the context of our magazine, the first opinion will always belong to the reader. This feature will allow fellow dental professionals to share their opinions on various topics, providing you with a “Second Opinion.” Perhaps some of these observations will change your mind; while others will solidify your position. In the end, our goal is to create discussion and debate to enrich our profession. –– Thomas Giacobbi, DDS, FAGD, Editorial Director, Dentaltown I believe that all dentists want to do their best for their third is certain that it is smooth and sharp like a spear. The fourth patients. We chose dentistry as our profession to be helpers and is convinced that it is like a python. Each man is absolutely cer- healers. Yet, there are various, often contradictory, occlusal tain that his friends are wrong since he “knew” the truth. If only philosophies practiced by these well-meaning dentists. Why is that these blind men had the ability see the whole animal, they would the case? Dental training and education should equip us to come have realized that an elephant is all of that and more. to our own conclusions on the validity of these occlusal philoso- Similarly, many factors contribute to the whole picture of phies, which are reviewed here. In my opinion, choosing an TMD. These load the metaphoric camel’s back of “adaptive capac- occlusal methodology should be entirely based on what we would ity.” When this capacity is exceeded, symptoms appear.
    [Show full text]
  • Differences Between Centric Relation and Maximum Intercuspation As Possible Cause for Development of Temporomandibular Disorder Analyzed with T-Scan III
    Published online: 2019-09-23 Original Article Differences between centric relation and maximum intercuspation as possible cause for development of temporomandibular disorder analyzed with T‑scan III Zana D. Lila‑Krasniqi1, Kujtim Sh. Shala1, Teuta Pustina‑Krasniqi1, Teuta Bicaj1, Linda J. Dula1, Ljuben Guguvčevski2 1Department of Prosthetics, Faculty of Medicine, School of Dentistry, Pristina, Kosovo, Correspondence: Dr. Zana D. Lila‑Krasniqi 2Department of Prosthetics, Faculty of Dentistry, Email: [email protected] Skopje, Macedonia ABSTRACT Objective: To compare subjects from the group with fixed dentures, the group who present temporomandibular disorders (TMDs) and a control group considering centric relation (CR) and maximum intercuspation (MIC)/habitual occlusion (Hab. Occl.) and to analyze the related variables also compared and analyzed with electronic system T-scan III. Materials and Methods: A total of 54 subjects were divided into three groups; 17 subjects with fixed dentures, 14 with TMD and 23 controls‑selection based on anamnesis-responded to a Fonseca questionnaire and clinical measurements analyzed with electronic system T-scan III. Occlusal force, presented by percentage (automatically by the T-scan electronic system) was analyzed in CR and in MIC. Results: Data were presented as mean ± standard deviation and differences in P < 0.05 were considered significant. After measurements of the differences between CR and MIC in the three groups were noticed varieties but the P > 0.05 it was not significant in all three groups.Conclusion: In our study, it was concluded that there are not statistically significant differences between CR and MIC in the group of individuals without any symptom or sign of TMD although there are noticed in the group with TMD and fixed dentures disharmonic relation between the arches with overload of the occlusal force on the one side.
    [Show full text]
  • Reduction of Implant Loading Using a Modified Centric Occlusal Anatomy Lawrence A
    Reduction of Implant Loading Using a Modified Centric Occlusal Anatomy Lawrence A. Weinberg, DOS, Purpose: This paper focuses on the derivation of implant loading forces as influenced by occlusal anatomy. Vertical occlusal forces on cusp inclines produce resultant lines of force that result in laterai rather than vertical forces to the supporting bone. Materials and Methods: An analysis of resultant linos of force with different impacting occlusai surfaces was iilustrated. Methods were suggested to decrease implant loading by reducing cusp inclines, utilization of cross occlusion, and the modification of occlusal anatomy to provide a continuous ¡ .5-mm flat fossae, rather than the line angles of the usual cuspal anatomy. The relationship of incisai guidance to the cusp inciines on the adjustable articulator were reviewed. Modification of the incisai pin and articulator settings were suggested to produce a 1.5-mm fossae throughout the prosthesis. Practical laboratory and intraoral occlusal adjustment techniques were suggested to provide a modified centric occlusal anatomy to help decrease implant loading. Results: Clinical exampies were shown to verify'the accuracy of the modified settings on the semi-adjustable articulator and the resultant modified occlusal anatomy. Conclusion: Implant loading can be reduced by modifying the location of the impact area and the occlusal anatomy. Simple modification of the incisai pin and articulator settings can be used to produce a 1,5-mm flat fossae, which results in more vertical forces to the supporting bone. The same procedures are used to reduce cusp inclinations, which effectively lessens the torque exerted on the prosthesis, implant, and bone. A combination of all these factors can prevent implant overioad.
    [Show full text]
  • Centric Relation Definition: a Historical and Contemporary
    J Indian Prosthodont Soc (July-Sept 2013) 13(3):149–154 DOI 10.1007/s13191-012-0209-7 REVIEW ARTICLE Centric Relation Definition: A Historical and Contemporary Prosthodontic Perspective Jayant N. Palaskar • R. Murali • Sanjay Bansal Received: 13 July 2011 / Accepted: 18 October 2012 / Published online: 31 October 2012 Ó Indian Prosthodontic Society 2012 Abstract Centric relation (CR) is a core topic of dentistry repeatable jaw relation and the logical position to fabricate in general and prosthodontics in particular. The term CR prosthesis. has become thoroughly confusing because of many con- flicting definitions. Unfortunately definition of CR changed Keywords Centric jaw relation Á Jaw relations Á repeatedly over past ten decades. All the existing defini- Hinge axis Á Head of the condyle Á Condyle tions in the dental literature, for the past 81 years, are segregated into definitions from 1929 to 1970, 1970–1980, and 1980–2010 and are critically analyzed. Both PubMed Introduction (key words: centric relation/centric jaw relation) and hand searches were employed, from citation in other publica- Centric relation (CR) is the most controversial concept in tions, to identify relevant articles in English language peer dentistry. The concept of CR emerged due to the search for reviewed PubMed journals from 1956 to 2010; although a reproducible mandibular position that would enable the the review is from 1929. Numerous definitions for CR have prosthodontic rehabilitation. Research in the field of CR been given, however, no consensus exists and the definition has been controversial for more than 100 years. There are given by a current glossary of prosthodontic terms is over 26 definitions of CR since the term was first devel- confusing.
    [Show full text]
  • Importance of Occlusion Aspects in the Completion of Orthodontic Treatment
    78Braz Dent J (2007) 18(1): 78-82 P.V.P. Oltramari et al. ISSN 0103-6440 Importance of Occlusion Aspects in the Completion of Orthodontic Treatment Paula Vanessa Pedron OLTRAMARI1 Ana Cláudia de Castro Ferreira CONTI1 Ricardo de Lima NAVARRO1,2 Márcio Rodrigues de ALMEIDA1 Renata Rodrigues de ALMEIDA-PEDRIN1 Fernando Pedrin Carvalho FERREIRA1 1Department of Orthodontics;2Department of Oral and Maxillofacial Surgery, School of Dentistry, University of Maringá, Maringá, PR, Brazil The purpose of this study was to address the therapeutic goals regarding the static and functional occlusion in the completion of orthodontic treatment. For such purpose, a study population comprising 20 female treated Class II malocclusion subjects with an initial mean age of 11 years underwent a two-phase treatment (orthopedics and orthodontics). The patients were diagnosed in centric relation and were treated according to the six keys for normal occlusion and functional occlusal parameters (centric relation, vertical dimension, lateral and anterior guidances, occlusal contacts and direction of forces applied on the teeth). After removal of fixed mechanics, retainers were installed and maintained for two years. Five years after orthodontic completion, the occlusal stability of the patients was evaluated regarding molar relationship and overjet, measured in dental casts. All subjects maintained the normal molar relationship and correct overjet achieved at the end of treatment, indicating a fair level of occlusal stability. The importance of the criteria of the ideal functional occlusion to ensure a better stability after completion orthodontic treatment will be discussed in detail in this paper. In addition, some clinical situations in which localized adjustments are indicated for occlusal refinement will be described.
    [Show full text]
  • Strategies for Consistent Aesthetics and Function
    108 AESTHETICS Strategies for Consistent Aesthetics and Function INTRODUCTION A Kois deprogrammer was utilized to take a centric relation Joyce L. Bassett, DDS Many patients present with both functional and aesthetic prob- bite, and models were mounted. A functional analysis showed lems. The dentist must first listen to the concerns of the patient, that the first point of contact in centric relation (CR) was the then evaluate the clinical findings in order to correctly apply maxillary and mandibular right lateral incisors. This finding dental facial treatment planning principles. When appropri- confirmed the diagnosis of a constricted chewing pattern. ate, minimally invasive techniques using a multidisciplinary The first step in dental facial treatment planning is evalu- approach should be presented. This article shows the step-by- ating the incisal edge and gingival position of the maxillary step thought process and treatment sequence for replacing and incisors (Figure 1). There are 4 ways to reposition the incisal restoring a 20-year-old feldspathic minimal preparation veneer edge: perio-restorative dentistry, orthodontics, orthognathic case. Verbal communication and clinical adjustments during surgery, or a combination of both orthodontics and orthogna- each phase were critical to the successful outcome, including thic surgery referred to as distraction osteogenesis. All options after the final cementation of the porcelain restorations. Col- were discussed with the patient. If no orthodontic treatment laboration with the patient invested her as an active participant was provided, the perio-restorative option of crown lengthen- in her aesthetic outcome and enhanced her satisfaction with ing and subsequent tooth shortening would increase both the both the process and the end result.
    [Show full text]
  • Implant Protected Occlusion
    IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) e-ISSN: 2279-0853, p-ISSN: 2279-0861.Volume 11, Issue 3 (Nov.- Dec. 2013), PP 20-25 www.iosrjournals.org Implant Protected Occlusion Yogeshwari Swaminathan¹, Gururaj Rao² ¹ (Intern (BDS), Saveetha Dental College & Hospital, Chennai, India) ² (MDS, Department of Prosthodontics, Saveetha Dental College & Hospital, Chennai, India) Abstract: Implant protected occlusion is a very important criteria to obtain an improved longevity of both the dental implant and the prosthesis. It is an occlusal scheme which reduces the force at the crestal bone and the implant interface. This concept was proposed by Dr. Carl E. Misch. Implant protected occlusion helps in reducing the noxious load and to maintain the implant load within the physiological limits of individualized occlusion. Occlusal overload will lead to biomechanical complications like early implant failure , early crestal bone lost, intermediate to late implant failure, screw loosening, uncemented restoration, component failure, porcelain fracture, prosthesis fracture and periimplant disease. Keywords: Dental implants, implant occlusion, implant protected occlusion, implant longevity, biomechanical complication I. Introduction Implant treatment has become the treatment of choice and the most desirable treatment option for replacing missing teeth in partially as well as completely edentulous patient. Dental implants have different biological and biomechanical characteristics compared to natural tooth. One of the most important criteria for implant success is implant occlusion. Implant protected occlusion is very essential as it provides the maximum intercuspation during clenching force and also reduces occlusal load on implant, which helps in protecting the implants. This concept was proposed by Misch and Bidez in 1994 [1].
    [Show full text]
  • Centric Relation–Intercuspal Position Discrepancy and Its Relationship with Temporomandibular Disorders
    Acta Odontologica Scandinavica ISSN: 0001-6357 (Print) 1502-3850 (Online) Journal homepage: http://www.tandfonline.com/loi/iode20 Centric relation–intercuspal position discrepancy and its relationship with temporomandibular disorders. A systematic review Antonio Jiménez-Silva, Julio Tobar-Reyes, Sheilah Vivanco-Coke, Eduardo Pastén-Castro & Hernán Palomino-Montenegro To cite this article: Antonio Jiménez-Silva, Julio Tobar-Reyes, Sheilah Vivanco-Coke, Eduardo Pastén-Castro & Hernán Palomino-Montenegro (2017) Centric relation–intercuspal position discrepancy and its relationship with temporomandibular disorders. A systematic review, Acta Odontologica Scandinavica, 75:7, 463-474, DOI: 10.1080/00016357.2017.1340667 To link to this article: https://doi.org/10.1080/00016357.2017.1340667 View supplementary material Published online: 22 Jun 2017. Submit your article to this journal Article views: 276 View related articles View Crossmark data Citing articles: 2 View citing articles Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=iode20 ACTA ODONTOLOGICA SCANDINAVICA, 2017 VOL. 75, NO. 7, 463–474 https://doi.org/10.1080/00016357.2017.1340667 REVIEW ARTICLE Centric relation–intercuspal position discrepancy and its relationship with temporomandibular disorders. A systematic review Antonio Jimenez-Silva a,b , Julio Tobar-Reyesc , Sheilah Vivanco-Cokec , Eduardo Pasten-Castro b and Hernan Palomino-Montenegrob aFacultad de Ciencias de la Salud, Universidad Autonoma de Chile, Temuco, Chile; bOrtodoncia y Ortopedia Dentomaxilofacial, Facultad de Odontologıa, Universidad Andres Bello, Santiago, Chile; cDepartment of Prosthodontics, Faculty of Dentistry, University of Chile, Santiago, Chile ABSTRACT ARTICLE HISTORY Objective: The objective of this study is to assess the relationship between centric relation-intercuspal Received 14 January 2017 position discrepancy (CR-ICP discrepancy) and temporomandibular disorders (TMDs), by systematically Revised 1 June 2017 reviewing the literature.
    [Show full text]
  • GPT-9 the Academy of Prosthodontics the Academy of Prosthodontics Foundation
    THE GLOSSARY OF PROSTHODONTIC TERMS Ninth Edition GPT-9 The Academy of Prosthodontics The Academy of Prosthodontics Foundation Editorial Staff Glossary of Prosthodontic Terms Committee of the Academy of Prosthodontics Keith J. Ferro, Editor and Chairman, Glossary of Prosthodontic Terms Committee Steven M. Morgano, Copy Editor Carl F. Driscoll, Martin A. Freilich, Albert D. Guckes, Kent L. Knoernschild and Thomas J. McGarry, Members, Glossary of Prosthodontic Terms Committee PREFACE TO THE NINTH EDITION prosthodontic organizations regardless of geographic location or political affiliations. Acknowledgments are recognized by many of “The difference between the right word and the almost right the Academy fellowship, too many to name individually, with word is the difference between lightning and a lightning bug.” whom we have consulted for expert opinion. Also recognized are dMark Twain Gary Goldstein, Charles Goodacre, Albert Guckes, Steven Mor- I live down the street from Samuel Clemens’ (aka Mark Twain) gano, Stephen Rosenstiel, Clifford VanBlarcom, and Jonathan home in Hartford, Connecticut. I refer to his quotation because he Wiens for their contributions to the Glossary, which have spanned is a notable author who wrote with familiarity about our spoken many decades. We thank them for guiding us in this monumental language. Sometimes these spoken words are objectionable and project and teaching us the objectiveness and the standards for more appropriate words have evolved over time. The editors of the evidence-based dentistry to be passed on to the next generation of ninth edition of the Glossary of Prosthodontic Terms ensured that the dentists. spoken vernacular is represented, although it may be nonstandard in formal circumstances.
    [Show full text]