Skip to main content
OpenTrials
Completed

NCT Number: NCT05599269

Retrospective Clinical Evaluation of Nano-hybrid-composite Denture Teeth

This retrospective study investigates the longevity of dentures with SR Phonares II teeth after a wearing period of more than 10 years.

The primary objective is to assess the survival rate of dentures with SR Phonares II teeth after more than 10 years. The secondary objectives asses the quality of the dentures concerning aesthetic, functional and biological properties.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Edentulous Mouth Dental Prosthesis Failure Mouth Diseases Mouth, Edentulous Stomatognathic Diseases Tooth Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Ivoclar Vivadent AG

Schaan, 9494, Liechtenstein

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • informed consent signed and understood by the subject
  • partial or full denture with SR Phonares II teeth
  • dentures delivered in the internal clinic between August 2010 and August 2012
  • to be able to visit the internal clinic (Exception: Patients with limited mobility are also included if another person can carry the dentures to the internal clinic of Ivoclar Vivadent AG for the examination.)

Exclusion criteria

  • patient does not wear the dentures regularly
  • health status (physical and mental) does not allow participation.

Treatment and study plan

Examination of dentures with SR Phonares II teeth

Device

The intraoral situation will be examined similar to a standard dental examination. The dentures are then removed, cleaned and examined extraoral. Pictures and an impression of the dentures are taken.

Primary outcomes

  1. Survival Rate of Dentures With SR Phonares II Teeth

    Time frame: 10 years

    After a wearing time of 10 years dentures with SR Phonares II teeth were examined by a dentist

Secondary outcomes

  1. Quality of the Dentures Concerning Aesthetic, Functional and Biological Properties

    Time frame: 10 years

    After a wearing time of 10 years dentures with SR Phonares II teeth were evaluated by a dentist according to adopted FDI criteria.

    Aesthetic properties (surface luster, surface staining, plaque accumulation, color match (to a reference), functional properties (fracture of material, marginal adaption, occlusal contour and wear, patient's view (evaluated during discussion) and biological properties (adjacent mucosa, oral health) were eveluated according the following FDI grades:

    • FDI grade 1: clinically excellent
    • FDI grade 2: clinically good
    • FDI grade 3: clinically satisfactory
    • FDI grade 4: clinically unsatisfactory

Sponsors and collaborators

Lead sponsor

Ivoclar Vivadent AG

Industry

Registry information

Official study title

Retrospective Clinical Evaluation of Nano-hybrid-composite Denture Teeth SR Phonares II

Important dates

Study start
2022
Primary completion
2023
Study completion
2023
First posted
Oct 31, 2022
Registry last updated
Oct 8, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.