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A Clinical Method for Prediction of Alveolar Bone Mineral Density in the Area between the Second Premolar and First Molar in Iraqi Adults with Class I Occlusion

Authors: Maha Ali Hasan Al-Juboori مها علي حسن الجبوري --- Hadeel A. Al-Hashimi
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2015 Volume: 27 Issue: 4 Pages: 161-167
Publisher: Baghdad University جامعة بغداد


Background: Orthodontic mini-implants are increasingly used in orthodontics and the bone density is a veryimportant factor in stabilization and success of mini-implant. The aim of this study was to observe the relationshipamong maximum bite force (MBF); body mass index (BMI); face width, height and type; and bone density in anattempt to predict bone density from these variables to eliminate the need for CT scan which have a highly hazardon patient.Materials and Methods: Computed tomographic (CT) images were obtained for 70 patients (24 males and 46females) with age range 18-30 years. The maxillary and mandibular buccal cortical and cancellous bone densitieswere measured between 2nd premolar and 1st molar at two levels from the alveolar crest (3 and 6 mm). Face heightand width were measured from CT. Clinically; Maximum bite force was measured on first molar region unilaterally bya digital device. The sample was divided into two groups according to the body mass index into; normal andoverweight.Results: The results obtained showed that there were no statistical significant differences in MBF or bone density inboth genders. Only the cortical bone density in maxilla in overweight group tended to be higher than normal BMIgroup. The face width and height correlated significantly negatively with MBF which correlated significantly positivelywith cortical bone density.Conclusions: It was concluded that a prediction of cortical bone density of preselected areas can be made frommaximum bite force, body mass index and inter-zygomatic width

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