Is biologic width of anterior and posterior teeth similar?
AbstractThe biologic width (BW) includes attached epithelial cells and connective tissue attachment complex being very important in the periodontal health during prosthetic treatments as invading this zone can cause bone resorption and gingival recession. The present study investigated biologic width values in the normal periodontium in anterior and posterior teeth. 30 patients that referred from restorative department to periodontics department of Tehran University of medical sciences who need crown lengthening procedure on their teeth with no history of orthodontic, prosthodontic and periodontal treatment were randomly enrolled in this cross-sectional trial. Sulcus depths (SD) as well as the distance between free gingival margin and the bone crest (FB) of anterior and posterior teeth were measured by UNC-15 probe and compared. periodontium thickness was also assessed. The data were subjected to Student t test. Mean BW in the 43 anterior and 47 posterior teeth was measured and not significantly different (1.4651±0.39 mm vs. 1.6312±0.49 mm) was observed; however, BW was significantly more in the teeth with thick periodontium compared to those with thin periodontium (1.703±0.5 vs. 1.408±0.35; P=0.002). BW not only is different in individuals but also could be dissimilar in different teeth and should be calculated independently prior to restorative treatments.
Block PL. Restorative margins and periodontal health. A new look at an old perspective. J Prosthet Dent 1987;57(6):683-9.
Maynard JG, Wilson RD. Physiologic dimension of the periodontium fundamental to successful restorative dentistry. J Periodontal 1979;50(4):170-4.
Parma-Benfenati S, Fugazzotto PA, Ruban MP. The effect of restorative margins on the post-surgical development and nature of the periodontium. Part I. Int J Periodontal Rest Dent 1985;5(6):30-51.
Dragoo MR, Williams GB. Periodontal tissue reactions to restorative procedures. Int J Periodontal Rest Dent 1981;1(1):8-23.
Garguilo AW, Wentz FM, Orban BJ. Dimensions and relation at the dentogingival junction in humans. J Periodontol 1961;32(3):261-7.
Ramfjord SP. Periodontal considerations of operative dentistry. Oper Dent 1988;13(3):144-59.
Stanley HR Jr. The cyclic phenomenon of periodontitis. Oral Surg Oral Med Oral Pathol 1955;8(6):598-610.
Eissmann HF, Radke RA, Noble WH. Physiologic design criteria for fixed dental restorations. Dent Clin North Am 1971;15(3):543-68.
Mayned JG Jr, Wilson RD. Physiologic dimensions of the periodontium significant to the restorative dentist. J Periodontol 1979;50(4):170-4.
Vacek JS, Gher ME, Assad DA, et al. The dimensions of the human dentogingival junction. Int J Periodontics Restorative Dent 1994;14(2):155-65.
Alpiste-Illueca F. Dimensions of the dentogingival unit in maxillary anterior teeth: a new exploration technique (parallel profile Radiograph). Int J Periodontics Restorative Dent 2004;24(4):386-96.
Mankoo T. Contemporary implant concepts in aesthetic dentistry--Part 1: Biologic width. Pract Proced Aesthet Dent 2003;18(8):609-16.
Than A, Duguid R, Mckendrick AJ. Relationship between restorations and the level of the periodontal attachment. J Clin Periodontol 1982;9(3):193-202.
Waerhaug J. Effect of rough surfaces upon gingival tissue. J Dent Res 1966;35(2):323-5.
Becker W, Ochsenbein C, Becker BE. Crown lengthening: The Periodontal Restorative Connection. Compend Contin educ dent 1998;19(3):239-40.
Wilson RD, Maynard G. Intracrevicular restorative dentistry. Int J Periodontics Restorative Dent 1981;1(4):34-49.
Hwang D, Wang HL. Flap thickness as a predictor of root coverage: a systematic review. J Periodontol 2006;77(10):1625-34.