Mapping of proximal enamel thickness in permanent teeth
Braz. j. oral sci
; 11(4): 481-485, Oct.-Dec. 2012. ilus, tab
Article
de En
| LILACS, BBO
| ID: lil-668676
Bibliothèque responsable:
BR97.1
ABSTRACT
Aim:
Knowledge of enamel thickness is relevant to perform stripping during orthodontic treatment. Thus, proximal enamel measurements of human permanent teeth were compared in this study.Methods:
The measurements were previously obtained on cut sections of mandibular central (n = 30) and lateral (n = 30) incisors, canines (n = 20), first (n = 40) and second (n = 40) premolars; maxillary central (n = 20) and lateral (n = 20) incisors, canines (n = 20), first (n = 40) and second (n = 42) premolars. Comparisons between thicknesses by arch side and proximal surface were carried out using Students t-tests (á = 0.05). Teeth were compared according to the mesial and distal thicknesses by ANOVA and Tukeys test.Results:
No significant differences were found between right and left teeth. For the mesial surface, the mandibular second premolar presented the highest mean value (1.376 mm ± 0.198; p<0.001). The mandibular central incisor had the smallest thickness in relation to the other teeth (0.675 mm ± 0.144), although not significant compared with the mandibular lateral incisor and canine (0.734-0.781 mm). The mandibular second premolar also presented the higher distal thickness in relation to the others (1.450 mm ± 0.172), although not significant compared with the maxillary first premolar (1.322 mm ± 0.195). Mandibular incisors had the lowest means for distal thickness (0.872-0.879 mm), although not statistically different compared with maxillary incisors and mandibular canine (1.002-1.015 mm). Distal thickness was greater than mesial (p<0.001).Conclusions:
Interproximal stripping should be less marked in incisors and mesial surfaces.
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Indice:
LILACS
Sujet Principal:
Orthodontie correctrice
/
Denture permanente
/
Émail dentaire
langue:
En
Texte intégral:
Braz. j. oral sci
Thème du journal:
ODONTOLOGIA
Année:
2012
Type:
Article