Status:
COMPLETED
Novel Use of 2-unit Cantilever Resin-bonded Bridges for Replacing Missing Molar Teeth - a Randomized Clinical Trial
Lead Sponsor:
The University of Hong Kong
Collaborating Sponsors:
Sun Yat-sen University
Conditions:
Missing Teeth
Eligibility:
All Genders
18+ years
Phase:
NA
Brief Summary
Tooth replacement is a significant issue in the World and while dental implants and conventional bridges have been used to replace missing teeth, dental implants are too expensive for many and convent...
Eligibility Criteria
Inclusion
- A missing molar tooth that ranges in length from 8-10 mm as judged by the pre-treatment study model. (No more than one per quadrant, if more than one, then different designs will be used in the same mouth.)
- The patient has been informed of the various treatment options (dental implants, partial dentures, conventional fixed prosthodontics and no treatment) and if the patient has chosen the RBB as their preferred treatment option, they will be invited to participate in the study
- The patient is available to attend for clinical examination at 6 monthly interviews for a period up to 36 months from the start of the study
- The patient will have a minimum of 12 occluding pairs of teeth (24 teeth in total)
- have a natural dentition opposing the planned RBB
- More than 30% bone support on the tooth abutment(s)
- Patients will agree to being randomly assigned to one of the two treatment groups, a 2-unit bridge or 3-unit fixed movable bridge
- The patient will have been informed on the nature of the study and be required to sign a consent form agreeing to undertake treatment in the study
- The patient is over 18 years old
- The patient is in sound dental health, ie no active caries and controlled periodontal disease
Exclusion
- Patients with active tooth decay
- Patients with uncontrolled periodontal disease. RBB abutment with a probing depth greater than 5mm and bleeding on probing
- Patients with teeth missing opposite to the planned RBB
- Abutment tooth mobility of 2 or greater (Millers classification)
- Patients with a known allergy to the dental alloy used to make the RBB, ie. Ni/Cr
- Patients with debilitating illnesses or complicating medical conditions
- Non-vital or root treated abutment teeth
Key Trial Info
Start Date :
October 1 2014
Trial Type :
INTERVENTIONAL
Allocation :
ACTUAL
End Date :
June 1 2019
Estimated Enrollment :
78 Patients enrolled
Trial Details
Trial ID
NCT02239718
Start Date
October 1 2014
End Date
June 1 2019
Last Update
August 18 2020
Active Locations (2)
Enter a location and click search to find clinical trials sorted by distance.
1
Department of Prosthodontics, Guanghua School of Stomatology & Affiliated Hospital of Stomatology, Sun Yat-sen University
Guangzhou, Guangdong, China
2
Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong
Hong Kong, Guangdong, China