Dimensional changes of hard and soft tissue after immediate implantation in comparison with conventional tooth extraction

Radvar, M. and Fatemi, K. and Abrishamachi, R. and Moeintaghavi, A. and Mohammadadzade, S. (2016) Dimensional changes of hard and soft tissue after immediate implantation in comparison with conventional tooth extraction. Bangladesh Journal of Medical Science, 15 (3). pp. 335-342.

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Introduction: Immediate implantation in single-root teeth has been claimed to possess some benefits, especially bone preservation. The aim of this study was to evaluate ridge changes after immediate implantation in comparison with tooth extraction and dental socket healing. Methods and Materials: In this study, 21 patients with hopeless single-root teeth were selected. After impression and cast making, the patients were divided into test and control groups. Each group included twelve dental sockets. For all teeth the extraction was performed atraumatically.Measurements included bucco-lingual ridge dimensions at 3mm and 7mm apical to an imaginary line connecting the CEJs of the two adjacent teeth (CEJ line) as well as vertical distance between the mentioned line and bone crest at the misobuccal, midbuccal, distobuccal, mesiopalatal, midpalatal, and distopalatal aspects. In addition, soft tissue measurements similar to hard tissue ones were taken using stone casts and acrylic stents. In test group immediate implantation was carried out following extraction whereas in the control group dental sockets were left for natural healing.Four mouths after the operation, in both groups, the flap was reflected and measurements taken at baseline were repeated. Results: Vertical changes of soft tissues in test group were significantly less than control group at all points except in mid-buccal aspect (p= 0.033 for mesiobuccal, p= 0.026 for distobuccal, p=0.004 for midpalatal, p=0.002 mesiopalatal, p=0.022 for distopalatal, p=0.016 for distal, p=0.048 for mesial). Horizontal dimension change of soft tissue at 7mm apical to the CEJ line in test group, were also significantly less than control group (p= 0.051). Vertical changes of hard tissue, measured in all points, in test group were less than those of control group. These changes were significant in mid-buccal,mid-palatal,mesiopalatal and distopalatalpoints (p= 0.046,0.029,0.020 and 0.026 respectively).Horizontal changes of hard tissue at 3 and 7mm apical to the CEJ line in test group were also less than control group. However, this was significant only at the 3 mm point (p=0.028). Conclusion: According to the results of this study, it can be concluded that immediate implantation is to some extent effective in reducing the expected vertical and horizontal bone and soft tissue changes occurring following conventional tooth extraxtion and natural socket healing. Further investigation is warranted to determine the optimum method of preventing these changes. © 2016, Ibn Sina Trust. All rights reserved.

Item Type: Article
Additional Information: Export Date: 16 February 2020 Correspondence Address: Abrishamachi, R.; Dental Research Center, School of Dentistry, Mashhad University of Medical SciencesIran; email: drabrishamchi@yahoo.com
Uncontrolled Keywords: Implantation Soft tissue Tooth extraction adult alveolar ridge Article bone transplantation bucco lingual ridge dimension clinical article clinical effectiveness controlled study dental socket healing distoopalatal tissue female healing human human tissue intermethod comparison male mesiopalatal tissue mid buccal tissue mid palatal tissue physical parameters tissues tooth implant tooth implantation
Subjects: WU Dentistry. Oral surgery
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib4 lib4
Date Deposited: 29 Feb 2020 09:45
Last Modified: 29 Feb 2020 09:45
URI: http://eprints.mums.ac.ir/id/eprint/13149

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