Association of gingival biotype with the results of scaling and root planing

• Published in: Journal of periodontal & implant science 2013, 43(6), , pp.283-290
• Main Authors: Sin, Yeon-Woo, Chang, Hee-Yung, Yun, Woo-Hyuk, Jeong, Seong-Nyum, Pi, Sung-Hee, You, Hyung-Keun
• Format: Article
• Language: English
• Subjects: 치의학
• ISSN: 2093-2278; 2093-2286
• DOI: 10.5051/jpis.2013.43.6.283

The concept of gingival biotype has been used as a predictor of periodontal therapy outcomes since the 1980s. In the present study, prospective and controlled experiments were performed to compare periodontal pocket depth (PPD) reduction and gingival shrinkage (GSH) after scaling and root planing (SRP) according to gingival biotype. Twenty-five patients diagnosed with chronic periodontitis participated in the present study. The PPD and GSH of the labial side of the maxillary anterior teeth (from the right canine to the left canine) were evaluated at baseline and 3 months after SRP. Changes in the PPD following SRP were classified into 4 groups according to the gingival thickness and initial PPD. Two more groups representing normal gingival crevices were added in evaluation of the GSH. The results were statistically analyzed using the independent t-test. In the end, 16 patients participated in the present study. With regard to PPD reduction, there were no significant differences according to gingival biotype (P>0.05). Likewise, sites with a PPD of over 3 mm failed to show any significant differences in the GSH (P>0.05). However, among the sites with a PPD of under 3 mm, those with the thin gingival biotype showed more GSH (P