Longitudinal changes in the molar relationship from primary to permanent dentition

Abstract

Preschool children (n=721) aged between 4 and 5 years were examined and 60 were selected. Two pairs of dental casts were obtained for each child. The first pair was from primary dentition before eruption of permanent first molars; the second pair had the permanent first molars in occlusion. The sample was divided into 3 groups, according to the terminal plane. The findings indicate that 55% of the group with flush terminal plane developed into Class I, 40% into Class II, and 5% into Class III molar relationship in the permanent dentition. The group with mesial step, 70% progressed to Class I, 25% to Class II, and 5% to Class III molar relationship in the permanent dentition. Finally, the group with distal step developed into Class II in the permanent dentition. It can be concluded that the terminal relationship of deciduous second molars was associated with the permanent first molars occlusion.

Occlusal Characteristics and Spacing in Primary Dentition: A Gender Comparative Cross-Sectional Study

“…The occlusion of the primary dentition is completely established by the age of 3 years and lasts until about 6 years of age when the first permanent tooth begins to erupt [ 11 ]. Understanding the association between morphological aspects in the primary dentition and its transition to the permanent dentition provides the possibility of predicting the final permanent occlusion [ 12 ]. The anteroposterior relation of maxillary and mandibular permanent molars is an important criterion for recognition of malocclusions.…”

Distribution of Children Based on the Type of Terminal Plane In Primary Dentition: A Study Among 3 To 5-Year-Old Children in Chennai

“…The occlusion of the primary dentition is completely established by 3 years of age and lasts till about 6 years of age when the first permanent tooth starts erupting (Farsi and Salama, 2009). Better understanding of the association between morphological aspects of the primary dentition and its transition to permanent dentition provides the possibility of predicting the final permanent occlusion (Dutra et al, 2009). it is very crucial for clinicians in order to plan early interceptive treatment.…”

Associations between influence of infant feeding patterns on the deciduous second molar relationship in preschool-aged children

“…8 The prevalence severity rate of malocclusion in children who are breastfed through their mother's nipples is lower than children who were bottle-fed. 9 Several studies have discussed the relationship between breastfeeding and bottle-feeding on the primary molar relationship. According to Dutra et al, it is very important to know the variation in the terminal relationship of primary second molars and their effect on the occlusal pathway of permanent tooth growth to prevent malocclusion.…”

“…According to Dutra et al, it is very important to know the variation in the terminal relationship of primary second molars and their effect on the occlusal pathway of permanent tooth growth to prevent malocclusion. 9 Sargod et al stated that determining the primary molar relationship from an early age is an important step to predict the relationship of the permanent molar in the future. 1 For example, mesial step can be predicted as class I and the distal step can be predicted as class II Angle.…”

“…1 For example, mesial step can be predicted as class I and the distal step can be predicted as class II Angle. 3,9,10 Sargod et al who studied 100 children revealed that 45% were exclusively breastfed, 18% were exclusively bottle-fed, and 37% were bottle-fed in addition to breastfeeding. In children, who were exclusively breastfed, 37 (84.09%) had a mesial step occlusion, 4 (9.09%) had a distal step occlusion, and 4 (9.09%) had a flush terminal plane occlusion.…”