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Adhesive restorative materials are routinely used in operative dentistry to improve tooth tissues with minimal preparation, achieve more esthetic and long term restorations. Despite these efficacy to dentistry these materials still present some drawbacks like polymerization shrinkage. Postoperative sensitivity, marginal discoloration and possibly secondary caries are often associated with loss of marginal integrity in composite restorations occurred as a result of polymerization shrinkage. To achieve optimal long term performance, the requirements will be first to manage polymerization stress buildup following restoration.Low-shrinking composites with new formulas have been successful in brilliantly further developing the leader product els extra low shrinkage.
The objective of this controlled clinical trial is to evaluate the clinical performance of restorative material ELS versus ELS Extra resin composite for Class I and Class II cavities that needs to be restored in permanent teeth.
The detrimental impact of resin composite polymerization shrinkage on restoration interface quality and stability has been recognized since the early use of this material is still one of the major drawbacks in adhesive dentistry, as it frequently leads to loss of marginal integrity or enamel fracture. According to clinical studies, drawbacks such as postoperative sensitivity, marginal discoloration and possibly secondary caries are often associated with loss of marginal integrity in composite restorations occurred as a result of polymerization shrinkage. Various technological solutions were investigated, including improved filler technology; improved, novel matrix structure with reduced shrinkage; use of stress-decreasing compounds within the resin matrix; changes in light-initiation technology to increase curing depth; and use of sonic vibrations and energy to favor flow and adaptation of highly filled resin composite. To achieve optimal long term performance, the requirements will be first to manage polymerization stress buildup following restoration. Low-shrinking composites should help to avoid clinical problems that are commonly associated with composite restorations, such as post-operative sensitivity, enamel cracks, rapid discoloration and deterioration of restoration margins, early development of caries recurrence, with a new formula and improved sculptability SAREMCO has been successful in brilliantly further developing the leader product els extra low shrinkage. When using new simplified restorative systems featuring distinctive physicochemical characteristics, the potential impact of different parameters such as fatigue behavior and/or elastic modulus on restoration quality and behavior is unknown and justifies additional investigations. Instead of in vitro evaluations, consideration of a rather well-established clinical trials suggesting medium to long term observation periods to discriminately appraise the clinical performance of various op-erative protocols.
The project includes 30 patients. Most of the patients have been recruited from the Istanbul Medipol University Dental Clinics in Istanbul. After giving their consent to take part in the study Class I & II restorations of both upper and lower molars and premolars are performed.The treatment procedure is: The patients are offered local anesthetic before treatment start. The cavity is excavated and filled according to the guidelines for composite restorations.
The control procedure is:
The restoration is evaluated according to marginal adaptation, cavo surface marginal discoloration, approximal contact, fractures, caries associated with restorations and postoperative hypersensitivity. The controls will take place after two weeks, one year, two years and three years.
ELS Extra composite, ELS composite
Not yet recruiting
Istanbul Medipol University Hospital
Published on BioPortfolio: 2017-10-17T18:18:22-0400
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Substances used to bond COMPOSITE RESINS to DENTAL ENAMEL and DENTIN. These bonding or luting agents are used in restorative dentistry, ROOT CANAL THERAPY; PROSTHODONTICS; and ORTHODONTICS.
The predisposition to tooth decay (DENTAL CARIES).
Diagnostic tests conducted in order to measure the increment of active DENTAL CARIES over a period of time.
Synthetic resins, containing an inert filler, that are widely used in dentistry.
A graft consisting of multiple tissues, such as muscle, bone, nerve, vasculature, and skin, comprising a functional unit for reconstructive purposes.