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Article
Amount of bone loss after maxillary dental implant loading in smoker and non-smoker patients

Author: Taha Y. Hamad طه حمد
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2012 Volume: 24 Issue: 1 Pages: 76-81
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Excessive crestal bone loss after dental implant occurs due to many factors among which, is smoking.This study was conducted to evaluate the effect and role of smoking in breakdown of bone around dental implantand the possibility to be a factor of its failure.Method: Forty implants had been inserted in anterior and bicuspid region of upper arch of 40 systemically healthymale subjects, 20 were smokers and the other 20 subjects were non smokers. After loading the prosthesis, all subjectswere followed by clinical (checking for any mobility or gingival change) and radiographic examination for twosuccessive 6 months periods (the overall follow up period was 1 year). Mesial and distal bone levels were measuredby digitized x ray each six months in both smokers and non smokers. All measurements were recorded for eachpatient and a comparison of marginal bone level was done.Results: A marked excessive marginal bone loss was found at mesial side of smokers, mean (1.18± 0.033) mm after 6months of loading and mean of (1.52 ± 0.052) mm after 1 year, while in non smoker group, the mean of mesial boneloss after 6 months was (0.85 ± 0.026) mm and (1.12 ± 0.031) mm after 1 year. The mean distal bone loss in smokers atthe two periods was (1.23 ± 0.04) mm and (1.59 ± 0.046) mm, while in non smokers, the mean distal bone loss was(0.87 ± 0.023) mm and (1.1 ± 0.029) mm respectively. Differences in all measurements were significant P < 0.001.Conclusion: Smoking could be a factor results in future implant failure


Article
Comparison of Three Dimensional Dental Software Computed Tomography Findings with Real Time Surgical Approaches for Impacted Teeth

Authors: Nazhat M. Abdlkareem --- Shefaa H. AL-Nuome --- Haider A. Rassul --- Taha Y.Hamad
Journal: Tikrit Journal for Dental Sciences مجلة تكريت لعلوم طب الاسنان ISSN: 20731213 Year: 2014 Volume: 3 Issue: 1 Pages: 113-122
Publisher: Tikrit University جامعة تكريت

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Abstract

An exact localization of impacted teeth is often difficult to assume by using two dimensional conventional radiological techniques like OPG or dental films. In contrast to these two dimensional imaging method, the Dental slice Software Computed Tomography offers a three-dimensional imaging of maxilla-facial region, providing the opportunity to study objectives in all standard plans with three-dimension, reconstructed and multisection views. The aim of this study is to prove the effectiveness of the Dental slice Software Computed Tomography in evaluating the position of impacted teeth as a presurgical diagnostic aid. 25 patients with total of 40 impacted teeth were classified and evaluated by three sets .The first set of radiographs consist of traditional two dimensional images(per apical , occlusal films and OPG).The second set comprised three-dimensional views obtained from a Dental slice Soft ware Computed Tomography and a third set which was surgical interventions results. Teeth crowns were classified into: type I (buccal or labial), type II (palatal or lingual), type III (half distance of the labio-palatal or bucco-palatal ,labio-lingual or bucco-lingual) according to their position within dental arches. The dental soft ware Computed Tomography succeeded to identify the exact situations of whole 40(100%) impacted teeth crowns that were confirmed surgically in the same anatomical locations. On the other hand there was a Failure of 33(82.5%) crowns that could not be determine their positions by two dimensional images and proved surgically in opposite sides. Three dimensional Computed Tomography is a helpful and stimulating tools by providing the surgeons a perfect mulitislices: axial, coronal, sagital, two dimensional and three dimensional images in one visit and once exposure and permits the oral surgeons to visualize the position and surgical anatomy of the tooth as it will be in the operating theatre, thus establishing sufficient patterns for adequate surgical planning ,reduce of need for exploratory procedures with less morbidity to the osseous structure and time saving.

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