Clinical Outcomes of Premolars Restored With Ceramic Vonlay Restorations Versus Onlay Using Modified USPHS Criteria (vonlay-onlay)

Cairo University (CU)

Status: Unknown

Conditions: Clinical Performance of Ceramic Vonlays

Treatments: Procedure: Vonlay Ceramic restorations; Procedure: Onlay Ceramic restorations

Study type: Interventional

Funder types: Other

Identifiers

NCT05114122

CEBD-CU-27-10-2020

Details and patient eligibility

About

Evaluation the clinical performance of premolars restored with ceramic vonlays versus onlays using modified USPHS criteria after follow-up period of 0,3,6,9,12 months

Full description

two groups of patients with vital premolars indicated for fixed restorations will be selected according to special inclusion criteria (n=13) in each group (total of 26). one group will receive minimally invasive cavity preparations for posterior indirect restorations either vonlay or onlay according to each group the patient will be assessed using Modified USPHS Criteria at 0,3,6,9,12 months regarding fracture, marginal integrity and marginal discoloration

Enrollment: 26 estimated patients

Sex: All

Ages: 25 to 44 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

1. Age range of the patients from 25-44 years old, who could read understand and write to sign the consent by himself /herself

2. Have no active periodontal or pulpal diseases, have teeth with good restorations.(19)

3. Psychologically and physically able to withstand conventional dental procedures

4. Patients with teeth problems indicated for onlay and vonlay (premolars).

   1. Decayed teeth.
   2. Teeth restored with large filling restorations.

5. Able to return for follow-up examinations and evaluation.

Exclusion criteria

1. Patient less than 25 or more than 44 years.
2. Patient with active resistant periodontal diseases.
3. Patients with poor oral hygiene, high caries risk and uncooperative patients.
4. Pregnant women.
5. Patients in the growth stage with partially erupted teeth.
6. Psychiatric problems or unrealistic expectations.
7. Lack of opposing dentition in the area of interest. 8- The presence of a removable or fixed orthodontic appliance, signs of bruxism or clenching, the absence of more than one unit in the posterior region

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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26 participants in 2 patient groups

Vonlay lithium disilicate ceramic restorations

Experimental group

Description:

Vonlay is a hybrid of an onlay with an extended buccal veneer surface for use in bicuspid regions where there is mostly enamel to bond to. The vonlay is less invasive, more readily repairable, less technique-sensitive to attain adequate bonding, and will leave sounder tooth structure remaining if further treatment is required in the future

Treatment:

Procedure: Vonlay Ceramic restorations

Onlay lithium disilicate ceramic restorations

Active Comparator group

Description:

Onlays are used to restore large areas of decay and also used to replace old restorations, whether they are defective amalgam fillings, old cast-gold onlays, or fabricated from some other material

Treatment:

Procedure: Onlay Ceramic restorations