Effects of Splinted or Non-splinted Single-unit Crowns on Marginal Bone-level Alterations Around Implants

Launched by PEKING UNIVERSITY · Aug 22, 2016

Keywords

ClinConnect Summary

This clinical trial is investigating the effects of two types of dental crowns—splinted (connected to other crowns) and non-splinted (individual crowns)—on the health of the bone around implants in the jaw. The goal is to find out which type of crown works better when placed on implants in patients who have lost teeth in the back of their mouths. The study will involve around 80 to 100 implants across at least 20 participants, all of whom will be in generally good health and have lost the same teeth on both sides of their jaws for more than six months.

To participate, individuals must have enough healthy bone to support an implant and be able to commit to follow-up visits for three years after getting their crowns. Those with certain health conditions, like uncontrolled diabetes or a history of radiation therapy in the head and neck, cannot participate. Throughout the trial, participants will receive care from a skilled surgeon and prosthodontist (a specialist in dental restorations), and their progress will be monitored carefully to ensure the best outcomes. This study aims to provide valuable information that could help improve dental care for patients needing implants.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • 1. All patients would be in general good health.
• • 2. All patients would need for fixed implant-supported prosthesis in the double posterior maxillae or mandibulae (there were at least two corresponding adjacent teeth lost in both sides from the 1st premolar to 2nd molar).
• • 3. The patients could be followed-up for 36 months after prosthetic loading
• • 4. A wide ridge of bone allowing the insertion of a 4mm platform implant and at least 8mm of bone in vertical height would be required.
• • 5. The same posterior teeth had lost on both sides for more than 6 months.
• Exclusion Criteria:
• • 1. For implant site, a ridge of bone do not allow the insertion of a 4mm platform implant and at least 8mm of bone in vertical height.
• • 2. Current need for pre-surgical bone or soft tissue augmentation in the planned implant area;
• • 3. Uncontrolled pathologic processes in the oral cavity;
• • 4. History of radiation therapy in the head and neck region;
• • 5. History of chemotherapy within 5 years prior to surgery;
• • 6. Systemic or local disease or condition that could compromise post-operative healing and/or osseointegration;
• • 7. Uncontrolled diabetes mellitus;
• • 8. Corticosteroids or any other medication that could influence post-operative healing and/or osseointegration;
• • 9. Smoking more than 10 cigarettes/day;
• • 10. Present alcohol and/or drug abuse