Abstract
Objective. The aim of this study was to compare the influence of two mucoperiosteal flaps on
periodontal healing of adjacent second molars after extraction of impacted mandibular
third molars. Study Design. An envelope incision with a releasing incision anterior to the second molar (3-cornered
flap) was used on one side and a Szmyd flap on the other side in 14 patients with
bilateral impaction of mandibular third molars. The periodontal health of the second
molars was evaluated before surgery and at 3 and 6 months postoperatively. A William's
periodontal probe was used to measure the pocket depth, clinical attachment level,
and bone level of the buccal and mesial surfaces of the second molars. The postoperative
measurements were analyzed by using analysis of covariance, with the covariables being
the preoperative measurements and variation factors being the type of flap used, the
surface measured, and the time since the procedure. Results. No statistically significant differences were found in comparing measurements of
probing depth, clinical attachment level, or bone level for the 2 types of flap used
or the 2 surfaces measured. However, there was a statistically significant increase
in all 3 measurements from the 3-month to the 6-month postoperative time. Conclusion. Independent of the design of the mucoperiosteal flap used in extracting an impacted
mandibular third molar, the periodontal condition of the adjacent second molar worsened
from 3 to 6 months, although it remained within normal values. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2002;93:404-7)
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Article info
Publication history
Accepted:
December 5,
2001
Received in revised form:
September 28,
2001
Received:
July 3,
2001
Footnotes
*Reprint requests: Adalberto L. Rosa, DDS, MSc, PhD, School of Clinical Dentistry of Ribeirão Preto — University of Sao Paulo, Av do Cafe S/N, 14040-904 — Ribeirão Preto, SP, Brazil [email protected]
**Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) provided financial support.
Identification
Copyright
© 2002 Mosby, Inc. Published by Elsevier Inc. All rights reserved.
