[Effect of crestal rotated flap on esthetics of peri-implant soft tissues in anterior maxilla].
OBJECTIVE
To investigate the height of interdental papillae around single-tooth implants in the anterior maxillae after exposure of implant using crestal rotated flap.


METHODS
The study comprised 34 implants in the anterior maxillae from 32 patients. All implants were uncovered by use of crestal rotated flap technique. Impressions were taken before and after stage 2 surgery, and stone models were used to evaluate the change of papillae height. The gingival papillae index around single-tooth implants was compared before and after the surgery.


RESULTS
The average increase in papillae height was (0.77 +/- 0.25) mm, which was statistically significant with analysis of a paired t test (P < 0.05). The change of gingival papillae index showed no significant difference using statistical analysis of rank sum test (P > 0.05). The lower the gingival papillae index was before the surgery, the less the papillae height increased after the surgery.


CONCLUSIONS
The main advantages of the crestal rotated flap technique are simplicity and predictability, and it consistently provides high papillae for the maxillary implants.
Xia
Hai-Bin
HB
Key Laboratory for Oral Biomedical Engineering, Ministry of Education, School of Stomatology, Wuhan University, Wuhan 430079, China.
Wang
Yi-Ning
YN
Shi
Bin
B
Cheng
Xiang-Rong
XR
D000328:Adult; D000539:Alveolar Process / Q000637:transplantation; D019250:Dental Implants, Single-Tooth; D004955:Esthetics, Dental; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010521:Periosteum / Q000637:transplantation*; D011446:Prospective Studies; D013524:Surgical Flaps; D055815:Young Adult