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CC BY-NC-ND 4.0 · Eur J Dent 2015; 09(03): 400-403
DOI: 10.4103/1305-7456.163230
Original Article
Dental Investigation Society

The relationship between occlusal support and maxillary development: An animal study

Fabricio F. Da Costa
1   Department of Dentistry, Health School, Potiguar University - Laureate International Universities, Natal, RN, Brazil
,
Gabriela S. M. Q. Santos
1   Department of Dentistry, Health School, Potiguar University - Laureate International Universities, Natal, RN, Brazil
,
Arcelino Farias-Neto
1   Department of Dentistry, Health School, Potiguar University - Laureate International Universities, Natal, RN, Brazil
,
Alfonso Sanchez-Ayala
2   Department of Dentistry, Ponta Grossa State University, School of Dentistry, Ponta Grossa, Paraná, Brazil
,
Célia M. Rizzatti-Barbosa
3   Department of Dentistry, Piracicaba Dental School, Campinas State University, Piracicaba, São Paulo, Brazil
› Author Affiliations
Further Information

Publication History

Publication Date:
04 September 2019 (online)

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ABSTRACT

Objective: To test the hypothesis that maxillary development may be affected by occlusal support. Materials and Methods: The sample was composed by Wistar rats (5 weeks old) divided into three groups: Control (n = 10), extraction of mandibular molar teeth – left side (n = 10), extraction mandibular molar teeth – left and right sides (n = 10). The rats were sacrificed 8 weeks postextraction. Cone beam computed tomography scan images were taken for posterior measurement of maxillary length and width. Data were analyzed by one-way analysis of variance (Tukey test as post-hoc test). Results: Maxillary length was significantly shorter (P < 0.005) in both groups after tooth extraction. No difference was observed regarding maxillary width and body weight. Conclusion: Reduced occlusal support may impair the development of the maxilla in rats.

Key words:

Craniofacial growth - hypodontia - occlusal support
 

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