Unsatisfactory or Defective Restoration of Tooth
Conditions
Keywords
Endodontically treated teeth, Partial coverage, Ceramic restorations, Luting systems, Preheated composite, Dual cure adhesive resin cement
Brief summary
This study explores an alternative approach using a pre-heated restorative resin composite as a luting material of partial coverage restorations on upper and lower posterior teeth. It will follow a split-mouth design with 60 participants selected based on strict criteria. Assessment at 6 months and 1 year post-delivery utilizes a modified model of USPHS criteria, evaluating retention, color match, marginal discoloration, secondary caries, anatomical form, marginal adaptation, and surface roughness. The null hypothesis: The use of preheated resin composite for cementing partial coverage restoration will not result in significantly superior clinical performance when compared to that after using dual-cure resin cement.
Detailed description
The adhesive cementation of ceramic partial coverage restorations is a technique-sensitive process essential for achieving optimal retention and marginal integrity. While dental resin cements are commonly used for adhesive luting of indirect ceramic restorations, concerns exist regarding their long-term reliability due to susceptibility to degradation over time and polymerization shrinkage-related issues. This study explores an alternative approach using a pre-heated restorative resin composite as a luting material of partial coverage restorations on upper and lower posterior teeth, aiming to address these drawbacks. It will follow a split-mouth design with 60 participants selected based on strict criteria. The preparation and delivery appointments follow specific guidelines, incorporating the Morphology Driven Preparation Technique (MDPT). Assessment at 6 months and 1 year post-delivery utilizes a modified model of USPHS criteria, evaluating retention, color match, marginal discoloration, secondary caries, anatomical form, marginal adaptation, and surface roughness. The objectives of this clinical trial are to evaluate the clinical performance of posterior partial coverage coronal restorations utilizing two different luting systems (preheated resin-based composite versus conventional dual-cure resin cement) in a split-mouth study design.
Interventions
DEVICEIPS Empress Direct
Resin composite will be heated and used to lute a ceramic partial coverage restoration.
DEVICEBisco Duo-Link Universal
Dual cure adhesive resin cement will be used to lute a ceramic partial coverage restoration.
Sponsors
King Abdullah University Hospital
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Outcomes Assessor)
Masking description
The patients who participated in the study and the assessor of the treatment outcome do not know the type of treatment procedure received.
Intervention model description
Split mouth study design, patients will be assigned to two different treatment protocols.
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Consenting participants. * Individuals aged 18 years and above with no systemic diseases that will affect their participation. * Teeth of healthy periodontium. * Teeth to be restored in normal occlusion with natural antagonist and adjacent teeth. * Acceptable oral hygiene characterized by no gingivitis, calculus deposit or active carious lesions. * Non-vital teeth will be included
Exclusion criteria
* Heavy occlusal contacts or signs of bruxism. * Profound, chronic periodontitis * Poor oral hygiene. * Sustained dentin hypersensitivity. * Systemic disease or severe medical complications or taking anti-inflammatory, analgesic, or psychotropic drugs.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Clinical evaluation of the performance of restoration adaptation of posterior partial coverage ceramic restoration. | 1 year | Clinical examination and evaluation of the adaptation quality of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta, Charlie, Delta and Echo. Alpha score means: restoration contour is continuous with the existing anatomical margin of the tooth. Beta score means: restoration is slightly under or over contoured. Charlie score means: marginal overhang or tooth structure (dentin or enamel) is exposed. Delta score means: restoration is missing, or traumatic occlusion, or restoration causes pain. |
| Clinical evaluation of the presence or absence of caries adjacent to posterior partial coverage ceramic restoration. | 1 year | Clinical examination and evaluation of the caries presence of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta. Alpha score means: No visible caries Beta score means: caries present |
| Clinical evaluation of the performance of marginal adaptation of posterior partial coverage ceramic restoration. | 1 year | Clinical examination and evaluation of the marginal adaptation quality of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta, Charlie, Delta. Alpha score means: Excellent continuity at resin-enamel interface, no ledge formation, no discoloration Beta score means: Slight discoloration at resin-enamel interface; ledge at interafce. Charlie score means: Moderate discoloration at resin-enamel interface measuring 1mm or greater. Delta score means: Recurrent caries at margins. |
| Clinical evaluation of surface staining of posterior partial coverage ceramic restoration. | 1 year | Clinical examination and evaluation of the presence or absence of surface staining of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta. Alpha score means: staining absent Beta score means: staining present |
| Clinical evaluation of contact points of posterior partial coverage ceramic restoration. | 1 year | Clinical examination and evaluation of the contact points quality of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta. Alpha score means: contact point present Beta score means: contact point absent. |
| Clinical evaluation of fracture of posterior partial coverage ceramic restoration. | 1 year | Clinical examination and evaluation of the structural integrity endurance of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta, Charlie, Delta, Echo. Alpha score means: No fracture of the restoration. Beta score means: Small chipping (1/4 of restoration) Charlie score means: Moderate chipping (1/2 of restoration) Delta score means: Severe chipping (3/4 of restoration) Echo score means: loss of the restoration. |
| Clinical evaluation of wear of posterior partial coverage ceramic restoration. | 1 year | Clinical examination and evaluation of the wear presence or absence of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta. Alpha score means: absence of wear. Beta score means: wear present. |
| Radiographic evaluation of the performance of restoration adaptation of posterior partial coverage ceramic restoration. | 1 year | Radiographic examination and evaluation of the adaptation quality of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta, Charlie, Delta and Echo. Alpha score means: restoration contour is continuous with the existing anatomical margin of the tooth. Beta score means: restoration is slightly under or over contoured. Charlie score means: marginal overhang or tooth structure (dentin or enamel) is exposed. Delta score means: restoration is missing. |
| Radiographic evaluation of the presence or absence of caries adjacent to posterior partial coverage ceramic restoration. | 1 year | Radiographic examination and evaluation of the caries presence of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta. Alpha score means: No visible caries Beta score means: caries present |
| Radiographic evaluation of marginal adaptation of posterior partial coverage ceramic restoration. | 1 year | Radiographic examination and evaluation of the marginal adaptation quality of partial coverage restorations according to the United States Public Health Service (USPHS) criteria as Alpha, Beta, Charlie, Delta. Alpha score means: Excellent continuity at resin-enamel interface, no ledge formation, no discoloration Beta score means: Slight discoloration at resin-enamel interface; ledge at interafce. Charlie score means: Moderate discoloration at resin-enamel interface measuring 1mm or greater. Delta score means: Recurrent caries at margins. |
Countries
Jordan
Contacts
Primary ContactZakereyya SM Albashaireh, PhD
Backup ContactKhawlah Z. Albashaireh, PhD
Outcome results
None listed