Universität zu Köln

Stoppenbrink, David, Daratsianos, Nikolaos ORCID: 0000-0003-2098-0379, Kutschera, Eric, Scharf, Sven, Braumann, Bert, Goetz, Werner, Jaeger, Andreas and Reichert, Christoph (2019). Dimensional changes of the alveolar ridge contour of the premolar extraction site in adolescents. J. Orofac. Orthop., 80 (4). S. 205 - 216. MUNICH: URBAN & VOGEL. ISSN 1615-6714

Full text not available from this repository.

Abstract

PurposePremolar extraction in orthodontic therapy is common in adolescent patients. Knowledge of the tissue reaction in an extraction site is mainly based on studies with animal and adults. Thus, we aim to describe the time-dependent dimensional changes of the alveolar ridge contour of the premolar extraction site in adolescents.MethodsClinical data were obtained from arandomized controlled clinical trial (Universal Trial Number U1111-1132-6655), comparing treatment modalities with orthodontic space closure was initiated after 2-4weeks (groupA) and12weeks after tooth extraction (groupB). Dental casts taken before the tooth extraction (T1) and before initiation of the space closure (T2) were digitalized with a3D scanner and superimposed to analyze the dimensional changes of the alveolar ridge in early and later stage of wound healing. Linear mixed models were used for statistical analysis.ResultsPlaster models of 25patients (mean age 15.2 years, 11male and 14female) with 66 extraction sites were enrolled. The average atrophic changes from tooth extraction to the early stage of wound healing (groupA, n=41) were in total 27.5%11.8; labially 31.3%15.1 and orally 23.6%13.4. In groupB (n=25) the average atrophic changes were in total 38.6%12.1; labially 46.2%16.7; orally 31.3%+/- 18.9. The atrophic changes between the groups in total (p=0.031) and at the labial side (p=0.012) were significant. The jaw affiliation was asignificant parameter for all examined areas in regard to all cases (labial p=0.019; oral p=0.020; total p=0.001). Atrophic changes between genders were not statistically different.ConclusionsAlveolar atrophy increased over time after extraction primarily in the lower jaw at the labial side. The main atrophy occurred in the first healing phase of the extraction socket. Thus,timely coordination is important to preserve sufficient bone levels. The atrophic changes of the alveolar ridge in adolescents parallel those reported for adults.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Stoppenbrink, David UNSPECIFIED UNSPECIFIED UNSPECIFIED Daratsianos, Nikolaos UNSPECIFIED orcid.org/0000-0003-2098-0379 UNSPECIFIED Kutschera, Eric UNSPECIFIED UNSPECIFIED UNSPECIFIED Scharf, Sven UNSPECIFIED UNSPECIFIED UNSPECIFIED Braumann, Bert UNSPECIFIED UNSPECIFIED UNSPECIFIED Goetz, Werner UNSPECIFIED UNSPECIFIED UNSPECIFIED Jaeger, Andreas UNSPECIFIED UNSPECIFIED UNSPECIFIED Reichert, Christoph UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-136694
DOI:	10.1007/s00056-019-00182-w
Journal or Publication Title:	J. Orofac. Orthop.
Volume:	80
Number:	4
Page Range:	S. 205 - 216
Date:	2019
Publisher:	URBAN & VOGEL
Place of Publication:	MUNICH
ISSN:	1615-6714
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language BEAM COMPUTED-TOMOGRAPHY; SINGLE-TOOTH EXTRACTION; GINGIVAL INVAGINATION; BONE; PRESERVATION; TEETH Multiple languages Dentistry, Oral Surgery & Medicine Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/13669