The aim of the study was to evaluate the influence of smoking on the clinical performance of a universal adhesive used with different application modes in non-carious cervical lesions.
Forty-seven patients (having at least three noncarious cervical lesions) were participated in this study. After allocation of patients into 2 groups according to their smoking habits (non-smokers; 24, smokers;23), lesions in each patient were restored with a resin composite, (Essentia, GC) using a universal adhesive G-Premio Bond and phosphoric acid (i-Dental) in three different application modes (etch\&rinse, selective-etch or self-etch). The restorative treatments were performed by single operator. Two experienced and calibrated examiners evaluated the restorations for retention, marginal discoloration, marginal adaptation, color match, postoperative sensitivity and secondary caries at one week (baseline), at 6-, 12, and 18 months using modified USPHS criteria.While the USPHS criteria measure the clinical performance of the restorative material, it scores according to three different degrees;Alpha:The restoration is clinically perfect. Bravo:All features of the restoration are sufficient, need not be renewed. Charlie: the restoration is clinically unsuccessful, unacceptable. The gingival and plaque index were also assessed with a periodontal probe.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
47
The phosphoric acid gel was applied to enamel and dentin washed for 5s and was dried gently with air spray. The adhesive system was applied to enamel and dentin surfaces and leave it in place for 10s.
The phosphoric acid was applied only on enamel for 10-15s then washed and was gently dried with air spray. The adhesive system was applied to enamel and dentin surfaces.
The adhesive system was applied to the enamel and dentin surfaces.
Hacettepe University Faculty of Dentistry
Ankara, Turkey (Türkiye)
Retention
According to the usphs criteria, retention indicates whether a restorative material is functional in the oral environment, and is the most important criterion by which we can evaluate the success of the material. Alpha: Retained. Charlie: Mobile or missing; clinically unacceptable.
Time frame: baseline (one week)-18-month
Marginal Discoloration
Evaluation of color changes in restoration margins and linear staining along restoration margins. Alfa: No discoloration along the margin. Bravo: Slight and superficial staining (removable, usually localized). Charlie: Deep staining cannot be polished away.
Time frame: baseline (one week)-18-month
Marginal Adaptation
The marginal adaptation criterion evaluates the complete achievement of tooth-restoration integrity. Alpha: Undetectable. Bravo: Visible evidence of a crevice along the margin, dentin not exposed, clinically acceptable. Charlie: Explorer penetrates into crevice, dentin is exposed; clinically unacceptable.
Time frame: baseline (one week)-18-month
Color match
Evaluating whether the restoration and adjacent tooth tissue color is compatible. Alpha:Matches tooth. Bravo: Acceptable mismatch. Charlie:Unacceptable mismatch.
Time frame: baseline (one week)-18-month
Post-op Hypersensitivity
It is the evaluation of sensitivity after dental treatment. Alpha: Hypersensitivity absent. Charlie: Present; clinically unacceptable.
Time frame: baseline (one week)-18-month
Secondary Caries
In this criterion, the dark colored area that occurs under the tooth tissue surface and in the tooth tissue adjacent to the restoration is defined as caries. Alpha: Caries absent. Charlie: Present; clinically unacceptable.
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Time frame: baseline (one week)-18-month
VAS scale
Sensitivity to air was assessed by appling a stream of compressed air for three second 1 cm away from the tooth surface while shielding the neighboring teeth with the fingers. After this application, individuals are asked to evaluate the sensitivity of the tooth according to the Visual Analog Scale (VAS). VAS consists of a straight line 10 centimeters (cm) long. The left end of the line is 0 and it means "no pain, the right end is 10", meaning unbearable pain. With the help of this scale, the pain levels in the teeth of individuals with hypersensitivity can be determined.
Time frame: baseline (one week)-18-month