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J Periodontal Implant Sci. 2016 Aug;46(4):277-87. doi: 10.5051/jpis.2016.46.4.277. Epub 2016 Aug 30.

The association between radiographic embrasure morphology and interdental papilla reconstruction using injectable hyaluronic acid gel.

Author information

1
Department of Periodontology, Chosun University School of Dentistry, Gwangju, Korea .
2
Department of Oral and Maxillofacial Radiology, Chosun University School of Dentistry, Gwangju, Korea .
3
Department of Prosthodontics, Chosun University School of Dentistry, Gwangju, Korea .

Abstract

PURPOSE:

The purpose of this study was to evaluate the clinical efficacy of enhancing deficient interdental papilla with hyaluronic acid gel injection by assessing the radiographic anatomical factors affecting the reconstruction of the interdental papilla.

METHODS:

Fifty-seven treated sites from 13 patients (6 males and 7 females) were included. Patients had papillary deficiency in the upper anterior area. Prior to treatment, photographic and periapical radiographic standardization devices were designed for each patient. A 30-gauge needle was used with an injection-assistance device to inject a hyaluronic acid gel to the involved papilla. This treatment was repeated up to 5 times every 3 weeks. Patients were followed up for 6 months after the initial gel application. Clinical photographic measurements of the black triangle area (BTA), height (BTH), and width (BTW) and periapical radiographic measurements of the contact point and the bone crest (CP-BC) and the interproximal distance between roots (IDR) were undertaken using computer software. The interdental papilla reconstruction rate (IPRR) was calculated to determine the percentage change of BTA between the initial and final examination and the association between radiographic factors and the reconstruction of the interdental papilla by means of injectable hyaluronic acid gel were evaluated.

RESULTS:

All sites showed improvement between treatment examinations. Thirty-six sites had complete interdental papilla reconstruction and 21 sites showed improvement ranging from 19% to 96%. The CP-BC correlated with the IPRR. More specifically, when the CP-BC reached 6 mm, virtually complete interdental papilla reconstruction via injectable hyaluronic acid gel was achieved.

CONCLUSIONS:

These results suggest that the CP-BC is closely related to the efficacy of hyaluronic acid gel injection for interdental papilla reconstruction.

KEYWORDS:

Dental esthetics; Hyaluronic acid; Interdental papilla

Conflict of interest statement

No potential conflict of interest relevant to this article was reported.

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