Prevalence and extent of Alveolar dehiscence and fenestration in Class I hyperdivergent subjects with different buccolingual inclinations of maxillary molar teeth: a CBCT study

Buccolingual position of teeth could affect the prevalence of alveolar bone defects. Presence of alveolar defects may have a deleterious effect on orthodontic treatment. The aim was to assess the prevalence and extent of dehiscence and fenestration in Class I hyperdivergent subjects and correlate it with buccolingual inclinations(BL) of maxillary first molar teeth. Methods: This retrospective study involved 80 CBCTs of class I hyperdivergent subjects divided into two groups - group A (n=33) buccolingual inclination >9º and group B (n=47) buccolingual inclination <9º. Prevalence and extent of alveolar bone dehiscence and fenestrations were measured in CBCTs using OSIRIX Lite software. Descriptive statistics, Mann Whitney U test and Spearman correlation were done for evaluating intergroup differences and correlation with Buccolingual inclination. Results: Overall prevalence of dehiscence and fenestration in maxillary first molars was 60.95% and 5% respectively. In the buccal alveolar bone, prevalence of dehiscence was highest in group A (84.6%) for 16 and in the lingual alveolar bone prevalence of dehiscence was highest in group B (71.4%) for 26 . On intergroup comparison, the extent of lingual alveolar bone dehiscence (26) in group B was significantly higher (p value <0.05) than in group A. No significant correlation between the extent of dehiscence and fenestration with buccolingual inclination of molar teeth was noted. Conclusion: Molar teeth with BL inclinations of more than 9º had higher prevalence of dehiscence on the buccal side and molar teeth with BL inclinations less than 9 degrees had more dehiscence on the lingual side. But no significant correlation of BL inclination with prevalence and extent of dehiscence and fenestration was noted

Oral health status for primary dentition – A pilot study

Introduction: Formulating an oral health status which will include oral hygiene index (OHI) exclusively for children, deft index, and the incidence of white spot lesions (WSL) will make it easier for the examiner to assess the current oral health status of a child and help in planning preventive strategies. This index will provide a comprehensive yet quick way to assess the oral health status of children as it includes past caries experience, present oral hygiene status, and future prediction of caries. Materials and Methods: Two hundred children (100 male, 100 female) aged 3–5 years (primary dentition) were included in this study. OHI, recorded index tooth wise and segment wise, deft index, and the WSLs classification were recorded in all the children. Receiver operating characteristics (ROC) curve was used to evaluate the accuracy of recording OHI in children index tooth wise and segment wise. Results: All the three indices were recorded for the 200 subjects, and based on the area under the curve of receiver operating characteristics, it was found that the OHI for primary dentition can be recorded tooth wise or segment wise. Index teeth chosen for primary dentition were labial surfaces of 54, 61, and 64, lingual surfaces of 82, 75, and 85. Conclusion: It includes the past caries experience, present hygiene status, and the future prediction of caries, making it a wholesome index. This cumulative index can be widely used in studies of epidemiology and ensure quicker evaluation during dental health programs in public school systems.