Abstract
ABSTRACTBackground: Accurate prediction of the mesiodistal widths (MDWs) of canines and premolars in children with primary dentition facilitates interception of malocclusion at an early age. Boston University (BU) approach is one, i.e., based on primary teeth for predicting canine and premolar dimensions.Aim: To predict the canine and premolar dimensions, in the contemporary population, using BU approach and compare with the values obtained using Tanaka-Johnston (T/J) approach.Design: Children in the age range of 7-11 years with presence of all permanent mandibular incisors and primary maxillary and mandibular canines and first molars were included in the study. Those with interproximal caries or restorations, abnormalities in shape or size and history of orthodontic treatment were excluded. Impressions of both arches were made using irreversible hydrocolloid and poured with dental stone. The MDWs of the required teeth were measured on the models using electronic digital vernier caliper from which widths of permanent canines and premolars were predicted using both T/J and BU approaches.Results: Statistically significant (p = 0.00) positive correlation (r = 0.52-0.55) was observed between T/J and BU approaches. A statistically significant (p = 0.00) strong positive correlation (r = 0.72-0.77) was observed among girls, whereas boys showed a statistically nonsignificant weak positive correlation (r=0.17-0.42) based on gender.Conclusion: Boston University approach can be further studied prospectively to make it possible as a prediction method of permanent tooth dimensions for children in primary dentition stage.How to cite this article: Nuvvula S, Vanjari K, Kamatham R, Gaddam KR. Primary Dentition Analysis: Exploring a Hidden Approach. Int J Clin Pediatr Dent 2016;9(1):1-4.
Highlights
The purpose of mixed dentition analysis (MDA) is to calculate the difference between the amount of the dental1-4Department of Pedodontics and Preventive Dentistry Narayana Dental College, Nellore, Andhra Pradesh, IndiaThe methods employed for MDA can be grouped into three categories, i.e., the ones that use regression equations, those based on radiographs and a combination of both these approaches.[1,2,3] Among the different MDA methods reported in the literature, those based on the regression equations are the most widely used, especially the Moyers’ probability tables and the Tanaka and Johnston (T/J) equations.[3]The major drawback of these analyses is applicability only after the eruption of mandibular permanent incisors
In his personal communication, proposed a prediction method, i.e., based on the mesiodistal widths (MDWs) of primary mandibular canines and first molars with an idea for early prediction of unerupted permanent mandibular teeth widths.[4]. This was presented in Boston University (BU), and the method was named as BU approach
We have extended the above formula by calculating the MDWs of both maxillary and mandibular primary canines and first molars for predicting the permanent tooth dimensions
Summary
The purpose of mixed dentition analysis (MDA) is to calculate the difference between the amount of the dental1-4Department of Pedodontics and Preventive Dentistry Narayana Dental College, Nellore, Andhra Pradesh, IndiaThe methods employed for MDA can be grouped into three categories, i.e., the ones that use regression equations, those based on radiographs and a combination of both these approaches.[1,2,3] Among the different MDA methods reported in the literature, those based on the regression equations are the most widely used, especially the Moyers’ probability tables and the Tanaka and Johnston (T/J) equations.[3]The major drawback of these analyses is applicability only after the eruption of mandibular permanent incisors. The purpose of mixed dentition analysis (MDA) is to calculate the difference between the amount of the dental. In his personal communication, proposed a prediction method, i.e., based on the mesiodistal widths (MDWs) of primary mandibular canines and first molars with an idea for early prediction of unerupted permanent mandibular teeth widths.[4] This was presented in Boston University (BU), and the method was named as BU approach. Accurate prediction of the mesiodistal widths (MDWs) of canines and premolars in children with primary dentition facilitates interception of malocclusion at an early age. Boston University (BU) approach is one, i.e., based on primary teeth for predicting canine and premolar dimensions
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