The Effect of Lubricant on the Detorque Force of Locator/Kerator Abutment in Overdenture Patients: A Pilot Clinical Study
Background: Despite the implants' remarkable success, mechanical failure of implant-abutment screws is a challenge for clinicians. Among the types of mechanical failures, abutment screw loosening is still frequently reported in the literaturePurpose: The present study aimed to evaluate the effe...
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Shiraz University of Medical Sciences
2025-06-01
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| Series: | Journal of Dentistry |
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| Online Access: | https://dentjods.sums.ac.ir/article_50376_ffa62d4cb8dcc6aeaf4ea0fd3ab106f0.pdf |
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| author | Ali Chamani ِِDavood Aghasizadeh Hamidreza Rajati Haghi Ghazal Aghebati Reza Shakiba |
| author_facet | Ali Chamani ِِDavood Aghasizadeh Hamidreza Rajati Haghi Ghazal Aghebati Reza Shakiba |
| author_sort | Ali Chamani |
| collection | DOAJ |
| description | Background: Despite the implants' remarkable success, mechanical failure of implant-abutment screws is a challenge for clinicians. Among the types of mechanical failures, abutment screw loosening is still frequently reported in the literaturePurpose: The present study aimed to evaluate the effect of using lubricant on the detorque force (removal force) of locator/kerator abutment in overdenture patients after 6 months of clinical usage.Materials and Method: This pilot clinical study examined the detorque force of implants in 20 edentulous patients with two mandibular implants positioned between the mental foramen. The patients underwent the fabrication of a complete maxillary prosthesis and mandibular overdenture. Before loading attachments in the delivery session, healing abutments were removed, and implant interiors dried, randomly some fixtures received a tetracycline eye ointment 1% lubricant, while the others remained non-lubricated. Abutments were secured with prescribed torque according to implant system guidelines (20 N.cm). After 6 months, detorque forces for the abutment locators were measured using a torque meter. Descriptive statistics, mean comparison, and Pearson correlation were performed on the obtained data. A significant level of P<0.05 was considered in the present study.Results: The mean detorque force was 13.4±1.94 in the non-lubricated group and 16.35± 1.24 in the lubricated group, which was significantly higher in the lubricated group (p< 0.001). Other results of the study include the non-significance of the difference in detorque force within male and female groups (p> 0.05), as well as the non-significance of Pearson's correlation between patients' age and detorque force (p> 0.05).Conclusion: According to the results, the use of lubricant significantly increases the detorque force, and it is recommended to use tetracycline eye ointment as a lubricant in implant treatment processes. |
| format | Article |
| id | doaj-art-ad5280a02acf47eabd74d32a21b82d98 |
| institution | OA Journals |
| issn | 2345-6485 2345-6418 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Shiraz University of Medical Sciences |
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| series | Journal of Dentistry |
| spelling | doaj-art-ad5280a02acf47eabd74d32a21b82d982025-08-20T02:01:06ZengShiraz University of Medical SciencesJournal of Dentistry2345-64852345-64182025-06-0126214515010.30476/dentjods.2024.101754.231650376The Effect of Lubricant on the Detorque Force of Locator/Kerator Abutment in Overdenture Patients: A Pilot Clinical StudyAli Chamani0ِِDavood Aghasizadeh1Hamidreza Rajati Haghi2Ghazal Aghebati3Reza Shakiba4Postgraduate Student, Dept. of Endodontics, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.Dept. of Prosthodontics, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.Dept. of Prosthodontics, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.Student Research Committee, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.Student Research Committee, Faculty of Dentistry, Mashhad University of Medical Sciences, Mashhad, Iran.Background: Despite the implants' remarkable success, mechanical failure of implant-abutment screws is a challenge for clinicians. Among the types of mechanical failures, abutment screw loosening is still frequently reported in the literaturePurpose: The present study aimed to evaluate the effect of using lubricant on the detorque force (removal force) of locator/kerator abutment in overdenture patients after 6 months of clinical usage.Materials and Method: This pilot clinical study examined the detorque force of implants in 20 edentulous patients with two mandibular implants positioned between the mental foramen. The patients underwent the fabrication of a complete maxillary prosthesis and mandibular overdenture. Before loading attachments in the delivery session, healing abutments were removed, and implant interiors dried, randomly some fixtures received a tetracycline eye ointment 1% lubricant, while the others remained non-lubricated. Abutments were secured with prescribed torque according to implant system guidelines (20 N.cm). After 6 months, detorque forces for the abutment locators were measured using a torque meter. Descriptive statistics, mean comparison, and Pearson correlation were performed on the obtained data. A significant level of P<0.05 was considered in the present study.Results: The mean detorque force was 13.4±1.94 in the non-lubricated group and 16.35± 1.24 in the lubricated group, which was significantly higher in the lubricated group (p< 0.001). Other results of the study include the non-significance of the difference in detorque force within male and female groups (p> 0.05), as well as the non-significance of Pearson's correlation between patients' age and detorque force (p> 0.05).Conclusion: According to the results, the use of lubricant significantly increases the detorque force, and it is recommended to use tetracycline eye ointment as a lubricant in implant treatment processes.https://dentjods.sums.ac.ir/article_50376_ffa62d4cb8dcc6aeaf4ea0fd3ab106f0.pdfdental implantationdental abutmentslubricantstorque |
| spellingShingle | Ali Chamani ِِDavood Aghasizadeh Hamidreza Rajati Haghi Ghazal Aghebati Reza Shakiba The Effect of Lubricant on the Detorque Force of Locator/Kerator Abutment in Overdenture Patients: A Pilot Clinical Study Journal of Dentistry dental implantation dental abutments lubricants torque |
| title | The Effect of Lubricant on the Detorque Force of Locator/Kerator Abutment in Overdenture Patients: A Pilot Clinical Study |
| title_full | The Effect of Lubricant on the Detorque Force of Locator/Kerator Abutment in Overdenture Patients: A Pilot Clinical Study |
| title_fullStr | The Effect of Lubricant on the Detorque Force of Locator/Kerator Abutment in Overdenture Patients: A Pilot Clinical Study |
| title_full_unstemmed | The Effect of Lubricant on the Detorque Force of Locator/Kerator Abutment in Overdenture Patients: A Pilot Clinical Study |
| title_short | The Effect of Lubricant on the Detorque Force of Locator/Kerator Abutment in Overdenture Patients: A Pilot Clinical Study |
| title_sort | effect of lubricant on the detorque force of locator kerator abutment in overdenture patients a pilot clinical study |
| topic | dental implantation dental abutments lubricants torque |
| url | https://dentjods.sums.ac.ir/article_50376_ffa62d4cb8dcc6aeaf4ea0fd3ab106f0.pdf |
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