Universität zu Köln

Reichert, Christoph, Kutschera, Eric, Ploetz, Christina, Scharf, Sven, Goelz, Lina, Fimmers, Rolf, Fuhrmann, Christine, Wahl, Gerhard, Braumann, Bert and Jaeger, Andreas (2017). Incidence and severity of gingival invaginations associated with early versus late initiation of orthodontic space closure after tooth extraction. J. Orofac. Orthop., 78 (5). S. 415 - 426. MUNICH: URBAN & VOGEL. ISSN 1615-6714

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Abstract

Gingival invaginations are a common side effect of orthodontic extraction-space closure. The timing of initiating the closure of an extraction space varies greatly in clinical practice. In this multicenter pilot and randomized controlled trial, we prospectively investigated whether initiating space closure in the early stage of wound healing would benefit the incidence and severity of invaginations developing in the extraction sites. A total of 368 patients were screened for indications to extract at least one mandibular premolar. Those recruited were randomly assigned to one of two treatment arms: initiation of space closure either 2-4 weeks (arm A) or ae<yen>12 weeks (arm B) after tooth extraction. Clinical data regarding treatment process and periodontal tissue response were recorded during and after space closure and analyzed by a specialized biometrics unit. The study was performed under continuous surveillance by an independent study control center. A total of 74 extraction sites were analyzed. Regarding the incidence of gingival invaginations, there were no significant intergroup differences [p = 0.13; group A comprising 37/44 (84.1%) and group B 29/30 (96.7%) invaginated sites]. The same was true based on either maxillary (p = 0.52) or mandibular (p = 0.21) sites only, and the severity of the invaginations did not differ between the treatment arms. As to the incidence and severity of gingival invaginations, we did not notice any statistically significant differences between the two timeframes. Our data do, however, provide a basis to identify additional confounders and to improve the accuracy of case-load estimations for future trials.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Reichert, Christoph UNSPECIFIED UNSPECIFIED UNSPECIFIED Kutschera, Eric UNSPECIFIED UNSPECIFIED UNSPECIFIED Ploetz, Christina UNSPECIFIED UNSPECIFIED UNSPECIFIED Scharf, Sven UNSPECIFIED UNSPECIFIED UNSPECIFIED Goelz, Lina UNSPECIFIED UNSPECIFIED UNSPECIFIED Fimmers, Rolf UNSPECIFIED UNSPECIFIED UNSPECIFIED Fuhrmann, Christine UNSPECIFIED UNSPECIFIED UNSPECIFIED Wahl, Gerhard UNSPECIFIED UNSPECIFIED UNSPECIFIED Braumann, Bert UNSPECIFIED UNSPECIFIED UNSPECIFIED Jaeger, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-220397
DOI:	10.1007/s00056-017-0098-9
Journal or Publication Title:	J. Orofac. Orthop.
Volume:	78
Number:	5
Page Range:	S. 415 - 426
Date:	2017
Publisher:	URBAN & VOGEL
Place of Publication:	MUNICH
ISSN:	1615-6714
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MOVEMENT; SITES; REGENERATION Multiple languages Dentistry, Oral Surgery & Medicine Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/22039