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Vestibular Frenectomy in Periodontal Plastic Surgery

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Vestibular Frenectomy in Periodontal Plastic Surgery DOI: 10.1051/odfen/2018054 J Dentofacial Anom Orthod 2018;21:205 © The authors Vestibular frenectomy in periodontal plastic surgery V. Monnet-Corti1,2, A. Antezack1,3, V. Moll1,4 1 Public assistance - Hôpitaux de Marseille (Hôpital de la Timone-AP-HM, Pôle Odontologie)–UFR Odontology, Aix- Marseille Université 2 Professor of Universities. Hospital practitioner. President of the French Society of Periodontology and Oral Implantology 3 Oral Medicine Resident 4 Assistant Hospital-University Periodontology-Private Practice in Martigues ABSTRACT Vestibular frena are bands of soft tissue that connect the lip or cheek to the alveolar mucosa or to the gum and that can restrict their movements. These mucosal folds can, in some cases, attach too close to the teeth and are associated to a persistent diastema. Additionally, if this frenum is too tight, it can cause gum recession by pulling the gums away from the teeth. The position of a frenum can become more apical and be corrected during growth with anterior teeth eruption. However, when it causes self-con- sciousness, pain, or gum recession, a frenectomy is indicated. The frenectomy is a simple procedure which involves total surgical removal of a frenum. The presence of a hypertrophic maxillary vestibular medial frenum associated with a diastema is the most commonly encountered indication in children. Its elimination will contribute to diastema closure that will stay stable over time. KEYWORDS Median maxillary labial frenum, median mandibular labial frenum, diastema, frenectomy, periodontal plastic surgery INTRODUCTION In the oral cavity, mucosal folds stretch- maxillary, and mandibular frena, which limit ing between the alveolar mucosa and the lip movements; the labial and medial lingual keratinized and attached gingiva are intend- frena, which limit tongue movements; and ed to stop, control, or limit the movements the lateral vestibular frenum, which limits of anatomical regions. These folds are re- cheek movement7. ferred to as frena (singular “frenum”). Median vestibular, maxillary, and mandib- They include the median labial, vestibular, ular frena were described by Placek et al. Address for correspondence: Virginie Monnet-Corti – 27 Boulevard Jean Moulin – 13385 Marseille Article received: 26-10-2017. E-mail: [email protected] Accepted for publication: 28-11-2017. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 1 Article available at https://www.jdao-journal.org or https://doi.org/10.1051/odfen/2018054 V. MONNET-CORTI, A. ANTEZACK, V. MOLL (1974)32 in terms of their attachments attachment, and 26.1% had inter- relative to marginal periodontium. They dental attachment8. In other words, proposed the following classification: 48.2% frena had attachment interfer- see Fig. 1a, b, c, and d. ing with the sulcus. A gingival–mu- This classification can also be used cosal frenum has a single attachment to distinguish between the attach- distributed over two or three attach- ment of the lateral and the lingual ment points18, and this is most com- frena. In 2011, a study with 226 chil- monly seen with the lateral frenum. dren (mean age 8.5 years), in terms A frenum is not responsible for per- of maxillary median maxillary frenum iodontal pathology or the presence attachment, 10.2% children had mu- of a diastema. It can be considered cosal attachment, 41.6% had gingi- as an associated unfavorable ana- val attachment, 22.1% had papillary tomical factor. They may represent Figure 1a Figure 1b Mucosal attachment: maxillary labial frenum is Gingival attachment: Low attachments of attached to the alveolar mucosa at the edge of maxillary labial frena are embedded in the the mucogingival line. attached gingiva. Figure 1c Figure 1d Papillary attachment: the maxillary labial Interdental attachment: maxillary labial frenum is attached to the papillary gingiva. frenum joins the top of the gingival septum The mobilization of the lip (tensile test) results and merges with the bunoid papilla. This in this case a displacement of the marginal anatomical situation is generally related to the gingival of the central incisors. persistence of the interincisal diastema. 2 Monnet-Corti V., Antezack A., Moll V. Vestibular frenectomy in periodontal plastic surgery VestibULAR FRENectomy IN periodoNtaL PLastic SURGery an anatomical anomaly of the gingiva – orthodontic closure of a diastema; and/or the alveolar mucosa31. – purely esthetic indications; For this reason, complete or partial – gingival or periodontal recessions; removal of frena may be indicated for – position on edentulous ridge that periodontal and/or orthodontic reasons. impedes the completion of a pros- The frenectomy must be part of the thesis; treatment plan for other defects or – associated lack keratinization; pathologies29. These include – mobile mucosa around implants; – periodontal disease linked to the – limitation of tongue and lip move- presence of plaque and preventing ments; the maintenance of hygiene. INDICATIONS FOR VESTIBULAR FRENECTOMY Frenectomy may be performed for keratinized tissue or attached gingiva38, periodontal and orthodontic indications. resulting in the opening of a gingival sulcus or a periodontal pocket (Fig. 3). Periodontal Indications If only the alveolar mucosa remains, maintaining good oral hygiene be- Frenum exerting marginal gingiva comes difficult because it is painful, traction and/or obstructing hygiene. and gingival inflammation is likely to A “normal” frenum is attached a few promote the progression of gingival re- millimeters from the marginal gingiva, cession (especially in children)35, or the delimiting a band of keratinized tissue formation of periodontal pockets. and attached coronally to the frenum Ramfjord36 (1993) based the indica- attachment.17 tion of frenectomy primarily on the A very large frenum can also simply possibility to maintain gingival health prevent periodontal or even oral hy- through proper hygiene. In these cir- giene (Fig. 2) because of its volume. cumstances, frena are considered When this mucosal fold moves during the muscular movements for phonation, facial expressions, and chewing, the tissues to which it is at- tached are pulled. If these tissues that frena are at- tached to are keratinized and attached to the gingiva, tissue movement will be absent. If, on the other hand, fre- na are attached to the free gingiva or if a periodontal lesion or recession has caused the tissues to migrate till the Figure 2 attachment, there will no longer be any Frenum attachment in the palatal papilla. J Dentofacial Anom Orthod 2018;21:205 3 V. MONNET-CORTI, A. ANTEZACK, V. MOLL In the presence of type-IV periodon- tium in Maynard and Wilson (1980)23 classification, the situation represents an area of weakness. The following associated clinical signs indicate a frenectomy:27 – Whitening of the internal papilla or the free gingiva during traction;11 – The limitation of labial or lingual movement (short and taut frenum); – The proximity of attachment to the free marginal gingiva; Figure 3 Apical traction of the tissues bordering the – The large width of the frenum at 13 recession on 41 by the medial vestibular its attachment ; mandibular frenum. – The opening of the gingivodental sulcus during traction. minor etiological factors in periodontal pathology and/or more effective etiolog- ical factors in mucogingival problems.5 Unesthetic frena Lateral frena frequently exert traction on the free gingiva and make the vesti- Elimination of unsightly frena has its bule shallow, impeding the passage of place in the overall therapeutic arrange- the toothbrush. ment of Class-1 and Class-2 malocclu- The traction exerted by the frenum sions22 and the treatment of gingival on the marginal periodontium is harm- contour asymmetries (line of necks)25 ful because it can: (Fig. 4a and b). In most cases, a simple movement – open the gingivodental sulcus; of the frenum attachment is sufficient. – allow the accumulation of bacterial plaque21; – interfere with hygiene (especially if there is no keratinized gingiva at all)4; – apical traction on the tissues at the bordering an early recession; – tension on surgically displaced tis- sues. This unfavorable clinical situation fre- quently encountered with Placek32 type- 3 and type-4 frena. Without intervention, the orofacial muscles of facial expres- Figure 4a sion and the movement of the lips and Hypertrophic median upper labial associated cheeks can move the free gingiva. with incomplete passive eruption of 11, 12, and 21. 4 Monnet-Corti V., Antezack A., Moll V. Vestibular frenectomy in periodontal plastic surgery VestibULAR FRENectomy IN periodoNtaL PLastic SURGery induced tissue regeneration, bone fill- ing, coronally positioned flap) or mar- ginal periodontium (displaced flaps associated or not associated with con- nective tissue grafts, tunneling). The frenum may simply be shifted apically, at least 15 days before the op- eration. In some cases, frenectomy is performed during surgical treatment (Fig. 5a, b, c, and d). Figure 4b Frenectomy associated with surgical coronal elongation to harmonize the gingival contour. It must not leave a scar. Frenectomy will be esthtetically satisfactory more frequently when associated with a lat- erally positioned flap technique 24 or a gingival5 graft to cover the excised site. Frenum-related with periodontal
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