Clinical Performance of Long-span Fixed Partial Dentures

Launched by UNIVERSITY HOSPITAL HEIDELBERG · Nov 14, 2019

Keywords

ClinConnect Summary

This clinical trial is studying a new type of dental restoration called long-span fixed partial dentures (FPDs) made from a strong ceramic material called zirconia. These dentures are designed to replace two adjacent missing teeth, and the trial aims to compare their performance with traditional metal-based dentures made of cobalt chromium. The researchers want to see how well these new ceramic dentures hold up over time regarding issues like defects in the outer layer.

To participate in this study, individuals must be at least 18 years old and have two missing back teeth that they want to replace. Participants should be willing to attend follow-up appointments for three years to monitor their dental health and the condition of the dentures. Before joining, patients will receive detailed information about the study, including its benefits and any risks. If you’re looking for a reliable way to restore your smile and you meet the eligibility criteria, this trial could be a great opportunity to help advance dental care.

Gender

ALL

Eligibility criteria

• Inclusion Criteria:
• • The patient is at least 18 years old.
• • The patient has unrestricted legal capacity.
• • The patient has two posterior teeth (premolars and / or molars) that are to be replaced next to each other.
• • The patient is reliable and willing to take part in follow-up examinations regularly and over the entire study period (three years).
• • The information about the study has been understood by the patient and the signed declaration of consent has been received.
• Exclusion Criteria:
• • Pregnancy and lactation
• • Local and / or systemic acute and / or chronic (also in the past) general medical diseases and conditions that contradict participation in the study and / or expose the patient to a higher risk in the case of participation in the study.
• • Severe bruxism diagnosed by a portable electrocardiomyography device (BruxOff) (\> 4 bruxism episodes / night)
• • Reduced clinical crown height (\< 5 mm before tooth preparation)
• * Limited periodontal health:
• • probing depths \> 4 mm or = 4 mm and bleeding on probing,
• • Furcation involvement \> I (first band of the periodontometer after Naber disappears completely)
• • Degree of loosening of the abutment teeth \> Grade I (\> 1 mm horizontal mobility)
• • Untreated endodontic problems of abutment teeth
• • Lack of antagonistic support from fixed dentures or natural teeth
• • Known allergies or intolerances to the materials used in the study
• • Lack of oral hygiene
• • Lack of compliance
• • Planned change of residence
• • Rejection of randomisation