Biomedical subjects

D N Kapoor

Publications and source records attributed to D N Kapoor.

At least 19 recordsLinked to original sources

PubMed2004

Maxillo- mandibular relationship--a cephalometric study.

An accurate assessment of apical base relationships using cephalometrics has been a perennial problem in orthodontics. The currently available literature suggests that reference points and planes are subject to change with treatment. Hence, an assessment of sagittal jaw relationship was done using five angular measurements and an attempt was made to determine the one which is statistically more accurate.

Adolescent↗

PubMed2001

Cephalometric evaluation of Class II malocclusions in transitional dentition.

Studying malocclusion during active growth period is important because this period has the maximum impact on dentofacial structures. The present study comprises of computerised cephalometric evaluation of 100 North Indian children in the age group of 9-12 years, with 50 children in normal occlusion group. The samples were segregated according to sex with 25 females and 25 males in each group. It was concluded from the study that changes or deviations in SNB, Saddle, Articular and Gonial angles are the potential indicative factors in the development of a class II malocclusion and that class II pattern is associated with short and posteriorly placed mandible in relation to the cranial base.

Age Factors↗

PubMed2000

Age prediction based on skeletal morphology.

Treatment plan for a child requires a complete diagnosis with monitoring of the skeleto-dental morphological changes during active period of growth. Growth modifications are done while the forces of growth are still at the peak of activity in a developing child. This study was undertaken on lateral cephalograms of 100 North Indian samples in the age group of 9-12 years consisting of 50 males and 50 females divided into normal occlusion and malocclusion groups, to predict and assess age by evaluating the skeleto-dental morphology in developing normal children having flush terminal plane molar relationship and children with developing class II pattern. It was concluded that based on measurements used in the study of dentofacial morphology, the age of a child could be statistically determined.

Age Determination by Skeleton↗

PubMed1993

Biomechanical evaluation of bonding with glass ionomer cement.

This study was designed to determine the bond strength of three commercially available glass ionomer cements when used to bond mesh-backed medium twin standard edgewise (.022" x .028") brackets to enamel surface. The bond strength of one composite resin was compared with those of the glass ionomer cements. Scanning electron microscopic study of the debonded enamel surface was carried out to evaluate the effects of the bonding agents on enamel. The teeth were bonded with all the materials according to manufacturers' specifications. Each specimen was embedded in Dental stone with the bonded facial surface exposed. A special bracket holder was used to hold the brackets precisely under the wings during debonding. An Instron universal testing machine was used to measure the force required for bond failure. To simulate oral conditions, the direction of pull was so designed that it included an element of torsional stress along with tensile force. The findings indicate that Ketac-cem and Fuji II Glass ionomer cements hae adequate bond strength for clinical use. The scanning electron photomicrographs revealed that the enamel was least affected and well preserved in the Glass ionomer cement group. Further investigation is required to test the bond strengths of Glass ionomer cements clinically.

Biomechanical Phenomena↗

PubMed1987