Advances in Clinical and Experimental Medicine

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Advances in Clinical and Experimental Medicine

2017, vol. 26, nr 5, August, p. 803–809

doi: 10.17219/acem/65069

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

Assessment of the primary stability of root analog zirconia implants designed using cone beam computed tomography software by means of the Periotest® device: An ex vivo study. A preliminary report

Jacek Matys1,A,B,C,D, Katarzyna Świder1,D, Rafał Flieger2,E, Marzena Dominiak3,E,F

1 Private Dental Practice, Wschowa, Poland

2 Private Dental Practice, Kościan, Poland

3 Dental Surgery Department, Wroclaw Medical University, Poland

Abstract

Background. The implant primary stability is a fundamental prerequisite for a success of osseointegration process which determines the prosthetic reconstruction time.
Objectives. The aim of the present study was to assess the quality and precision of modern conical bone computer tomography (CBCT) software in preparing root analog zirconia implants (RAZIs) by measuring its primary stability by means of the Periotest device.
Material and Methods. Thirteen pig jaws with proper erupted first premolar (P1) teeth were used in the study. The CBCT examination was conducted in the area of the P1 tooth in each mandible. The 3-dimensional (3D) view of each tooth was designed from CBCT scan. The created 3D images were used to prepare root analog zirconia implants milled from a medical-grade zirconia block by means of laboratory milling. The RAZIs and titanium implants were placed into an alveolar socket after the tooth had been removed. The primary stability of the teeth before their extraction (G1), RAZIs (G2) and titanium implants (G3) were checked by Periotest devices.
Results. The mean results in PTV were: 15.9, 3.35, 12.7 for G1, G2 and G3 group, respectively. RAZIs during immediate loading achieved a significantly higher primary stability (lower Periotest value) as compared to the teeth and implants.
Conclusion. The modern CBCT device allows us to design a precise image of an extracted tooth for the purpose of manufacturing a root analog implant. The additional feature of the surgical protocol using RAZI is the possibility of avoiding the augmentation procedure, which reduces the whole cost of the treatment.

Key words

RAZI, primary stability, root analog zirconia implant, Periotest

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