Parviz Torkzaban1, Seyed Reza Arabi2, Ghodratollah Roshanaei3, Mohsen Rostami4, Sara Soheilifar5. 1. Associate Professor, Department of Periodontics, School of Dentistry, Hamadan University of Medical Sciences , Hamadan, Iran. 2. Assistant Professor, Department of Periodontics, School of Dentistry, Hamadan University of Medical Sciences , Hamadan, Iran. 3. Assistant Professor of Research Center for Modeling of Noncommunicable Diseases, Department of Biostatistics and Epidemiology, School of Public Health, Hamadan University of Medical Sciences , Hamadan, Iran . 4. Periodontist, Department of Periodontics, Ilam, Iran . 5. Assistant Professor, Department of Periodontics, School of Dentistry, Hamadan University of Medical Sciences , Hamadan, Iran .
Abstract
AIM: The aim of this study was to evaluate and compare the radiographic bone loss and soft tissue parameters around one stage and two stage implants. MATERIALS AND METHODS: Twenty four patients with submerged implants and twenty four patients with non submerged implants at the time of loading were assessed in this prospective cohort study. The soft tissue assessment included probing depth (PD), papilla index (PI), mucosal thickness (MT) and keratinized tissue (KG); another parameter assessed was the radiographic distance between the shoulder of the implant and alveolar crest evaluated at baseline (loading time) and 3,6 and 12 months after loading in both groups.Data were analysed using repeated measures analysis of variance (ANOVA) and multiple comparisons were done using LSD method. RESULTS: The changes in the soft tissues including PD, KG, MT and PI had no significant differences in either group. The amount of bone loss 3 and 6 months after loading was significantly greater in one stage implants (0.93±0.45 mm at 3months and1.45±0.58 mm at 6months, for one stage and 0.32±0.21 mm at 3months and 0.74±0.43 mm at 6 months for two stage group). But the change of this index 12 months later was not significantly different between the two groups (1.87±0.76mm for one stage and 1.65±0.59mm for two stage group). CONCLUSION: Based on the results of this study there is no difference in hard and soft tissue changes one year after loading of one or two stage implants.
AIM: The aim of this study was to evaluate and compare the radiographic bone loss and soft tissue parameters around one stage and two stage implants. MATERIALS AND METHODS: Twenty four patients with submerged implants and twenty four patients with non submerged implants at the time of loading were assessed in this prospective cohort study. The soft tissue assessment included probing depth (PD), papilla index (PI), mucosal thickness (MT) and keratinized tissue (KG); another parameter assessed was the radiographic distance between the shoulder of the implant and alveolar crest evaluated at baseline (loading time) and 3,6 and 12 months after loading in both groups.Data were analysed using repeated measures analysis of variance (ANOVA) and multiple comparisons were done using LSD method. RESULTS: The changes in the soft tissues including PD, KG, MT and PI had no significant differences in either group. The amount of bone loss 3 and 6 months after loading was significantly greater in one stage implants (0.93±0.45 mm at 3months and1.45±0.58 mm at 6months, for one stage and 0.32±0.21 mm at 3months and 0.74±0.43 mm at 6 months for two stage group). But the change of this index 12 months later was not significantly different between the two groups (1.87±0.76mm for one stage and 1.65±0.59mm for two stage group). CONCLUSION: Based on the results of this study there is no difference in hard and soft tissue changes one year after loading of one or two stage implants.
Entities:
Keywords:
Bone resorption; Dental Implants; Radiography