Novel Use of 2-unit Cantilever Resin-bonded Bridges for Replacing Missing Molar Teeth - a Randomized Clinical Trial
Launched by THE UNIVERSITY OF HONG KONG · Sep 11, 2014
Trial Information
Current as of April 24, 2025
Completed
Keywords
ClinConnect Summary
No description provided
Gender
ALL
Eligibility criteria
- Inclusion Criteria:
- • 1. 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.)
- • 2. 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
- • 3. 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
- • 4. The patient will have a minimum of 12 occluding pairs of teeth (24 teeth in total)
- • 5. have a natural dentition opposing the planned RBB
- • 6. More than 30% bone support on the tooth abutment(s)
- • 7. Patients will agree to being randomly assigned to one of the two treatment groups, a 2-unit bridge or 3-unit fixed movable bridge
- • 8. 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
- • 9. The patient is over 18 years old
- • 10. The patient is in sound dental health, ie no active caries and controlled periodontal disease
- Exclusion Criteria:
- • 1. Patients with active tooth decay
- • 2. Patients with uncontrolled periodontal disease. RBB abutment with a probing depth greater than 5mm and bleeding on probing
- • 3. Patients with teeth missing opposite to the planned RBB
- • 4. Abutment tooth mobility of 2 or greater (Millers classification)
- • 5. Patients with a known allergy to the dental alloy used to make the RBB, ie. Ni/Cr
- • 6. Patients with debilitating illnesses or complicating medical conditions
- • 7. Non-vital or root treated abutment teeth
Trial Officials
Michael G Botelho, BDS MSc PhD
Study Chair
Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong
Edward CM Lo, BDS MDS PhD
Study Director
Dental Public Health, Faculty of Dentistry, The University of Hong Kong
Yan Wang, BDS MDS PhD
Study Director
Department of Prosthodontics, Guanghua School of Stomatology, Sun Yat-sen University
Walter YH Lam, BDS MDS
Principal Investigator
Oral Rehabilitation, Faculty of Dentistry, The University of Hong Kong
About The University Of Hong Kong
The University of Hong Kong (HKU) is a leading research institution dedicated to advancing medical knowledge and improving healthcare outcomes through innovative clinical trials. With a commitment to excellence in research and education, HKU collaborates with various stakeholders, including healthcare providers and industry partners, to conduct rigorous and ethically sound clinical studies. The university's diverse expertise and state-of-the-art facilities enable it to explore a wide range of therapeutic areas, contributing to the global pursuit of scientific advancement and the development of novel treatment strategies.
Contacts
Jennifer Cobb
Immunology at National Institute of Allergy and Infectious Diseases (NIAID)
Locations
Guangzhou, Guangdong, China
Hong Kong, Guangdong, China
Patients applied
Timeline
First submit
Trial launched
Trial updated
Estimated completion
Not reported
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