Comparison of reverse torque values of abutment screws with the application of oil-based and water-based antibacterial agents

Author:

Nourizadeh Amin1ORCID,Shafiee Elnaz2,Khorramdel Azin3ORCID,Mousavi Seyed Amin1,Rahbar Mehran4

Affiliation:

1. Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Science, Tabriz, Iran

2. Department of Prosthodontics, Faculty of Dentistry, Islamic Azad University, Tabriz, Iran

3. Department of Periodontics, Faculty of Dentistry, Islamic Azad University, Tabriz, Iran

4. DDS, Private Practice, Tabriz, Iran

Abstract

Background. Using antibacterial agents to remove the foul odor of the implant cavity and prevent peri-implantitis can affect the detorque values and lead to the loosening of the abutment screw. This study investigated the effects of tetracycline and chlorhexidine gel on detorque values. Methods. This in vitro study was carried out on three groups of five implants. Group G1 was the control group, and no material was applied to the implant cavity. In group G2, the implant cavity was first filled with artificial saliva and then with chlorhexidine gel. In group G3, the implant cavity was first filled with artificial saliva and then with tetracycline. The abutments were tightened with 25 N/cm2 and then loosened. Finally, the detorque values were calculated. Results. The highest detorque values were recorded in group G1. Group G3 showed the lowest detorque values. ANOVA showed significant differences in mean detorque values (P<0.05) between the three groups. Conclusion. According to this study, applying antibacterial agents decreased the detorque values and increased the risk of screw loosening. The reduction of detorque values was more pronounced with the oil-based antibacterial agent (tetracycline).

Publisher

Maad Rayan Publishing Company

Subject

General Dentistry

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