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. 2017 Dec 1;9(12):e1425-e1430.
doi: 10.4317/jced.54261. eCollection 2017 Dec.

Post-orthodontic position of lower incisors and gingival recession: A retrospective study

Domenico Ciavarella  1 , Michele Tepedino  2 , Crescenzio Gallo  1 , Graziano Montaruli  1 , Khrystyna Zhurakivska  1 , Ludovica Coppola  1 , Giuseppe Troiano  1 , Claudio Chimenti  2 , Michele Laurenziello  1 , Lucio Lo Russo  1
Affiliations

Post-orthodontic position of lower incisors and gingival recession: A retrospective study

Domenico Ciavarella et al. J Clin Exp Dent. .

Abstract

Background: To evaluate if changes in lower incisor position following orthodontic treatment are correlated with development of gingival recessions.

Material and methods: Pre- and post-treatment digital models and lateral cephalograms of 22 subjects were collected retrospectively. The clinical crown length, gingival scallop, and papilla height of the central lower incisor were measured along with the cephalometric incisor's inclination, the distance from the mandibular plane, and the distance between the Infradentale and Menton points. Statistical correlations between gingival and cephalometric variables were studied. In addition, two groups were defined based on the post-treatment incisor inclination value ('normal' or 'proclined') and compared.

Results: The incisor inclination was correlated with the change in gingival scallop and papilla height. Moreover, there was a statistically significant difference in clinical crown height and gingival scallop between the 'normal' group and the 'proclined' group.

Conclusions: Changes in lower incisor position, especially an excessive proclination, after orthodontic treatment may play a role in the development of gingival recession. Key words:Orthodontic treatment, Incisor inclination, IMPA, Gingival recession, Alveolar bone.

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Conflict of interest statement

Conflict of interest statement:The authors state that they have no conflicts of interest.

Figures

Figure 1
Figure 1
Measurements performed on digital models. (a) Measurement of CCH, the distance between the incisal edge and the gingival zenith; (b) measurement of MPH and DPH, the distance between the gingival papilla and the incisal edge; (c) measurement of GS, the distance between the zenith of the gingival contour and a line connecting the apex of the mesial and distal papilla.
Figure 2
Figure 2
Measurements on lateral cephalograms. L1, incisal edge of the lower central incisor; Id, infradentale point; Me, Menton point; Go, Gonion point; a, long axis of the lower central incisor; b, mandibular plane passing through Go and Me point.
See this image and copyright information in PMC

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