Functional Crown Lengthening: Biological Width Correction

  • Regia Aristiyanto Universitas Muhammadiyah Yogyakarta
  • Diatri Nari Ratih Department of Conservative Dentistry, Faculty of Dentistry, Universitas Gadjah Mada, Indonesia


Introduction: Functional crown lengthening is one of the most common surgical procedures that facilitating restorative treatment. It was done on teeth with inadequate clinical crowns in the presence of deep and subgingival pathologies. Inadequate clinical crowns defined as tooth with less than 2 mm cervico-incisal of sound. Case Report: The 32 years old female patient complained on broken restoration on upper left anterior tooth since one week ago. He also complained about upper right anterior tooth that turned brown. The tooth had received root canal treatment with direct composite restoration since 3 years ago, but the restoration on tooth 11 and 21 was broken. The remaining crown on tooth 11 and 21 was less than 2 mm. The periapical radiograph examination showed tooth 11 and 21 was non-hermetic obturation. Functional crown lengthening and root canal treatment was performed on teeth 11 and 21, with porcelain crown restoration and fiber post. Conclusion: Functional crown lengthening result affects the quality of post retreatment restoration. The success of functional crown lengthening is marked by no recurrent gingival hyperplasia after functional crown lengthening.


Lanning SK, Waldrop TC, Gunsolley JC, Maynard JG. Surgical crown lengthening: evaluation of the biological width. J Periodontol. 2003;74(4):468–74.
Kina JR, Dos Santos PH, Kina EF, Suzuki TY, Dos Santos PL. Periodontal and prosthetic biologic considerations to restore biological width in posterior teeth. J Craniofac Surg. 2011;22(5):1913–6.
Gorni FGM, Gagliani MM. The outcome of endodontic retreatment: a 2-years follow-up. J Endod. 2004;30(1):1–4.
Chugal NM, Clive JM, Spångberg LS. Endodontic treatment outcome: effect of the permanent restoration. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007;104(4):576– 582.
Carlos RB, Nainan MT, Pradhan S, Sharma R, Benjamin S, Rose R. Restoration of endodontically treated molars using all ceramic endocrowns. Case Report in Dentistry Hindawi Publishing Corporation. 2013;2013:210763.
Bonfante G, Kaizer OB, Pegoraro LF, do Valle AL. Fracture strength of teeth with flared root canals restored with glass fibre posts. Int Dent J. 2007;57:153-160.
Gunay H, Seeger A, Tschernitschek H, Geurtsen W. Placement of the preparation line and periodontal health — a prospective 2 year clinical study. Int J Periodon Rest Dent. 2000;20(2):171-181.
Reitemeier B, Hansel K, Walter MH, Kastner C, Toutenburg H. Effect of posterior crown margin placement on gingival health. J Prosthet Dent. 2002;87(2):167-172.
Gargiulo AW, Wentz F, Orban B. Dimensions and relations of the dentogingival junction in humans. J Periodontol. 1961;32(3):261-267.
Allen EP. Use of mucogingival surgical procedures to enhance esthetics. Dent Clin North Am. 1988;32(2):307-30.
Marzadori M, Stefanini M, Sangiorgi M, Mounssif I, Monaco C, Zucchelli G. Crown Lengthening and Restorative Procedures in The Esthetic Zone. Periodontol 2000. 2018;77(1):84-92.
Patel RM, Baker P. Functional crown lengthening surgery in the aesthetic zone - periodontic and prosthodontic considerations. Dent Update. 2015;42(1):36–38, 41–42.
Mutebi AK, Osman YI. Effect of the ferrule on fracture resistance of teeth restored with prefabricated posts and composite cores. Afr Health Sci. 2004;4(2):131-135.
Jovanovski S, Popovski J, Dakskobler A, Marion L, Jevnikar P. The influence of crown ferrule on fracture resistance of endodontically treated maxillary central incisors. Balk J Dent Med. 2017;21:44-49.
How to Cite
ARISTIYANTO, Regia; RATIH, Diatri Nari. Functional Crown Lengthening: Biological Width Correction. Journal of Indonesian Dental Association, [S.l.], v. 3, n. 1, p. 43-46, feb. 2020. ISSN 2621-6175. Available at: <>. Date accessed: 17 sep. 2021. doi:
Case Report