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Bacterial leakage in Morse Cone internal connection implants using different torque values: an in vitro study.
Simonetta DʼErcole1, Domenico Tripodi, Lorenzo Ravera
1*Research Fellow, Department of Experimental and Clinical Sciences, Dental School, University of Chieti-Pescara, Chieti, Italy. †Professor of Pediatric Dentistry, Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy. ‡Private Practice, Turin, Italy. §Research Fellow, Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy. ‖Professor of Oral Pathology, Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy. ¶Researcher, Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.
Higher insertion torque values in Morse Cone connection implants significantly reduce bacterial leakage. This finding is crucial for improving implant stability and preventing infections in dental procedures.
Area of Science:
- Biomaterials Science
- Microbiology
- Dental Implantology
Background:
- Microbial leakage at the implant-abutment interface is a significant concern in dental implantology.
- Morse Cone connections are widely used in dental implants, but their sealing efficacy under varying conditions requires further investigation.
Purpose of the Study:
- To evaluate the impact of increasing insertion torque values on bacterial leakage in Morse Cone connection implants.
- To determine if higher torque levels enhance the sealing properties of conical Morse Cone connections.
Main Methods:
- Thirty Morse Cone implants were divided into three groups, receiving 20 N, 30 N, or 40 N insertion torque.
- Implants were inoculated with Pseudomonas aeruginosa or Aggregatibacter actinomycetemcomitans.
- Bacterial penetration was assessed by observing broth turbidity.
Main Results:
- Bacterial contamination was detected in 2 out of 10 implants in the 20 N and 30 N groups, specifically with P. aeruginosa.
- No bacterial contamination was observed in any of the implants subjected to 40 N insertion torque.
Conclusions:
- Increased insertion torque values in Morse Cone connections correlate with a reduction in bacterial leakage.
- Applying higher torque may enhance the marginal seal of conical Morse Cone implants, potentially reducing the risk of peri-implant infections.
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