Impact of Abutment Torque on Marginal Bone Loss in Dental Implants
Official title: Impact of Abutment Screw Torque Values on Marginal Bone Loss and Peri-Implant Parameters: A Three-Arm Randomized Clinical Trial
Run by University of Valencia · NCT07234552 · Data updated 2026-11-12
This study tests whether using different abutment torques (15 Ncm vs 30 Ncm) or a submerged healing approach affects bone loss, gum health, and patient comfort in dental implants.
Quick facts
| Study type | Interventional |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 30 (estimated) |
| Sponsor | University of Valencia Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 1 site (Valencia, Valencia) |
| Status | Recruiting |
| Started | January 1, 2026 |
| Main results expected | March 2027 |
| Study ends | April 2027 |
| Registry record updated | July 1, 2026 |
| Trial ID | NCT07234552 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults requiring posterior dental implants with sufficient bone, adequate keratinized tissue, and good oral health who meet the exclusion criteria.
✕Probably not a fit
Patients not showing torque-related differences or those not receiving a prosthesis during the study may have limited benefit.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This randomized, intra-individual clinical trial assigns three implants per participant: one with a transmucosal abutment torqued to 15 Ncm, one to 30 Ncm, and one submerged healing cap. Outcomes include marginal bone loss, peri-implant soft-tissue health, microleakage, and patient-reported experiences during and after the prosthetic phase. Data are collected intraoperatively, at crown placement, and during early post-prosthetic follow-up, with attention to pain, inflammation, chewing, speech, sleep, and daily activities. The design aims to minimize between-patient variability by comparing treatments within the same mouth.
Why it matters
Potential benefit: If successful, the study could inform best torque practices to preserve bone and soft tissue, improving implant longevity and patient comfort.
How similar studies have gone: Previous studies have explored abutment torque effects, but this intra-individual, three-arm design provides novel, directly comparable data on bone loss and patient outcomes.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Posterior edentulism * Completion of craniofacial growth * Full-mouth plaque index and bleeding index \< 25% * Sufficient bone height and width for implant placement without the need for bone regeneration procedures * Presence of at least 2 mm of keratinized mucosa around the dental implant * Stable occlusion and healthy periodontium * Absence of medical conditions that contraindicate implant surgery, such as heavy smoking (\<10 cigarettes per day), severe bruxism, pregnancy or breastfeeding, bisphosphonate therapy, and patients undergoing chemotherapy or radiotherapy in the head and/or neck area * Uncooperative patients Exclusion Criteria: * Loss to follow-up * Incorrectly parallelized periapical radiographs
Where it's running
-
Clinica Odontologica UV
Valencia, Valencia, Spain Recruiting
Study contacts
- Principal investigator: Paula Claver Baldovi — University of Valencia
- Study coordinator: Juan Carlos Bernabeu Mira
- Email: jcbernabeumira@gmail.com
- Phone: +34 697 348 312
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Aquatic power training dosing strategies and creatine in older adults
This trial tests whether different aquatic power training dosing methods and creatine supplementation help improve function in community-dwelling adults aged 60 and older.
-
Strength and dual-task training to help people with Parkinson’s improve strength and function
This trial tests three levels of physiotherapy, including progressive resistance training with and without cognitive dual-task and instability components, to see if they improve muscle strength, body composition, and physical function in adults with Parkinson’s or related syndromes.
-
Effect of Cardiorespiratory Changes on Carotid Flow Time During Lung Resection
This study tests how anesthesia-related changes during lung surgery affect carotid flow time to see if it reflects fluid status and heart pre-load for patients undergoing thoracoscopic lung resection.
-
Materials to Spread Pressure in Diabetic Foot Ulcers
A test to see if pressure-distributing materials like felt padding help heal neuropathic foot ulcers in people with diabetes.
-
How different implant abutment shapes and heights affect bone loss around dental implants
This study tests whether the shape and height of implant abutments (2 mm vs 3 mm; cylindrical vs concave) influence bone loss and implant health in adults receiving implant-supported teeth.
-
Exercise plus a thermogenic nutritional supplement to improve body composition and metabolic health in middle-aged adults with high body fat
This 12-week program will test whether adding a thermogenic, appetite‑modulating supplement to a multicomponent exercise plan helps 50–65-year-olds who are overweight with high body fat improve body composition and metabolic markers.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.