Effects of soft tissue grafting prior to orthodontic treatment on preventing gingival recession in dogs

Young Woo Song, Heekyu Jung, Seo Yeon Han, Kyeong Won Paeng, Myong Ji Kim, Jae Kook Cha, Yoon Jeong Choi, Ui Won Jung

Research output: Contribution to journalArticlepeer-review

Abstract

Purpose: This study was conducted to assess the efficacy of prophylactic gingival grafting in the mandibular anterior labial area for preventing orthodontically induced gingival recession. Methods: Eight mongrel dogs received gingival graft surgery at the first (I1) and third (I3) mandibular incisors on both sides based on the following group allocation: AT group (autogenous connective tissue graft on I1), AT-control group (contralateral side in the AT group), CM group (xenogeneic cross-linked collagen matrix graft on I3) and CM-control group (contralateral side in the CM group). At 4 weeks after surgery, 6 incisors were splinted and proclined for 4 weeks, followed by 16 weeks of retention. At 24 weeks after surgery, casts were made and compared with those made before surgery, and radiographic and histomorphometric analyses were performed. Results: Despite the proclination of the incisal tip (by approximately 3 mm), labial gingival recession did not occur. The labial gingiva was thicker in the AT group (1.85±0.50 mm vs. 1.76±0.45 mm, P>0.05) and CM group (1.90±0.33 mm vs. 1.79±0.20 mm, P>0.05) than in their respective control groups. Conclusions: The level of the labial gingival margin did not change following labial proclination of incisors in dogs. Both the AT and CM groups showed enhanced gingival thickness.

Original languageEnglish
Article numbere16
JournalJournal of Periodontal and Implant Science
Volume50
DOIs
Publication statusPublished - 2020

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation of Korea (NRF) grant funded by the Korean government (Ministry of Science, ICT & Future Planning) (No. NRF-2017R1A2B2002537).

Publisher Copyright:
© 2020, Korean Academy of Periodontology.

All Science Journal Classification (ASJC) codes

  • Oral Surgery
  • Periodontics

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