Effect of time on tooth dehydration and rehydration.

Objective: To estimate the time required for teeth to dehydrate and rehydrate and its relation to the accuracy of tooth shade selection.

Materials And Methods: Thirty-two participants were recruited, and color measurements were conducted using a spectrophotometer placed with a custom jig. After isolation, baseline measurements were made at 1, 2, 3, 5, 7, 10, and 15 min intervals to determine dehydration time.

Effect of composite type and placement technique on cuspal strain.

Objective: To compare the cuspal strain in Class II restorations made with bulk-fill and conventional composite resins.

Materials And Methods: Fifty extracted maxillary premolars were mounted into phenolic rings and divided into five groups (n = 10). Specimens received standardized MOD preparations.

Acidic oral moisturizers with pH below 6.7 may be harmful to teeth depending on formulation: a short report.

Xerostomia affects 30% of the population and manifests as a side effect of medications, systemic diseases, or cancer therapy. Oral moisturizers are prescribed to overcome the ailments of dry mouth and its symptoms. It is imperative that these products help to restore hyposalivation and that they do not present any secondary effect that can harm oral health.

The quality of fixed prosthodontic impressions: An assessment of crown and bridge impressions received at commercial laboratories.

Background: The authors evaluated and quantified clinically detectable errors commonly seen in impressions sent to commercial laboratories and determined possible relationships between finish line errors and other factors involved.

Methods: The authors visited 3 large and 1 small commercial dental laboratories over a 12-month period. Three calibrated examiners evaluated the impressions.

pH and Erosive Potential of Commonly Used Oral Moisturizers.

Purpose: To measure the pH values of commonly used oral moisturizers and to evaluate their erosive potential using a gravimetric analysis.

Materials And Methods: A pH analysis was performed for seven commercially available oral moisturizers using a calibrated pH meter. The pH recording was repeated three times, from three different bottles each of the same product.

Dental health of patients with Parkinson's disease in Iceland.

The oral and dental health of patients with Parkinson's disease (PD) has not been well documented and the findings are conflicting. Patients with PD were invited to take part in a clinical and radiographic examination together with a comparison control group of persons who were a spouse or family member. Subjects (n = 67) and controls (n = 55) were examined and compared.