Bilateral tooth gaps of the lateral incisors in the upper jaw
Conditions
Interventions
Group 1: Patients with two anterior gaps: Variant 1 of the restoration corresponds to an adhesive bridge made of non-precious metal with ceramic veneering.
Group 2: Patients with two anterior gaps: Va
Sponsors
Dentalfirma 3M ESPE
Eligibility
Sex/Gender
All
Age
18 Years to 70 Years
Inclusion criteria
Inclusion criteria: - older than 18 years; - no change of location planned; - Attractive (at least average) oral hygiene; - Non-application of both upper lateral incisors - no parafunctions (bruxism); - No strong occlusal load - abutment teeth should be caries-free - Periodontally healthy/restored (max. degree of loosening 1); - Compliance with the preparation guidelines for lava restorations can be maintained.
Exclusion criteria
Exclusion criteria: - under the age of 18; - Change of location planned; - poor oral hygiene; - Non-application of only an upper lateral incisivus - Parafunctions (bruxism); - Abutment teeth not caries-free - Periodontally unhealthy/restored (more than loosening level 1); - Pregnant women and nursing mothers are excluded from the study. - Patients in whom the preparation guidelines for lava restorations cannot be adhered to.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| - Function/Retention/Cementation - Fractures (wing, connector, pontic, local, margin) These parameters are recorded using modified Ryge criteria and recorded on the appropriate test sheet. This assessment system is used to decide whether a restoration is clinically acceptable or not. In the group of acceptable restorations, a distinction is made between very good results (alpha) and clinically acceptable results (bravo). The latter deviate slightly from the ideal restoration, but this does not represent a clinically relevant reduction in quality. Evaluations with Charlie (indication for renewal of the restoration for preventive reasons) or Delta (indication for immediate renewal of the restoration) are considered clinically unacceptable. If a fracture occurs, the restoration must be considered a failure. The same applies in the event that a restoration cannot be reattached after complete retention loss/decement due to fracture, flaking or secondary caries, but must be renewed. If total retention loss occurs without fracture/spalling or secondary caries, the restoration should be reattached according to the guidelines given in the study. If a one-sided retention loss occurs (only one wing affected), the detached wing should be separated, the preparation covered with composite and the restoration reused as a single-wing adhesive bridge. | — |
Secondary
| Measure | Time frame |
|---|---|
| - marginal quality (evaluation of continuity clinically by means of probe and replication technique/REM) - secondary caries - marginal discoloration - Integrity of the tooth - surface texture - Abrasion at the antagonist (evaluation clinically, as well as by replication technique/Willytec 3D) - sensitivity - color matching - patient satisfaction - Side effects and incidents These parameters are also recorded using modified Ryge and Hickel criteria. In addition, plaque deposition and the periodontal condition of the abutment teeth are assessed during each follow-up examination. During the baseline examination, the criterion "anatomical shape" is evaluated once. | — |
Countries
Germany
Contacts
Public ContactDaniel Edelhoff
Poliklinik für Zahnärztliche Prothetik der LMU München
Outcome results
None listed