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Background: Maximum bite force value gives information about the integrity of masticatory system,however the relationship between body mass index (BMI) and maximum bite force is not clear. The aim of the study is to elucidate the relationship between BMI and maximum bite force. Subjects and methods: 274 children who are in good overall and dental health, within different ages were selected and their body mass index was measured and the maximum bite force was registered using bite force meter of strain gauge type

Objectives: This study was done for evaluation of children’s anxiety level with three different injection techniques of local anesthesia including the standard concealment technique, showing the dental syringe before injection and camouflaging by sleeves. Material and method: 60 patients, ranging from 7 -12 years old, required infiltration anesthesia in the upper arch were selected for this study. They were randomly allocated into 3 groups (n=20) according to the technique used for administration of local anesthesia. Group (1) the control group in which the basic injection technique was used.