Comparative study of shade matching performance of dental students under natural daylight and daylight lamp conditions.

BACKGROUND: As visual shade matching is subject to light source variables, this study was conducted to compare shade matching performance of dental students under two lighting conditions, ie, natural daylight and a commercially available daylight lamp. MATERIALS AND METHODS: Two sets of porcelain discs were prepared. The first set consisted of eight porcelain discs of shades A2, A3, A3.5, B2, B3, C2, C3, and D3 of the Vitapan Classical Shade Guide system. The second set consisted of three porcelain discs of shade A2, B2, and C2, having exactly similar L*a*b* values to those of the corresponding shade discs in the first set. Forty dental students were asked to find the closest match for the shades A2, B2, and C2 in the second set from the first set under natural daylight and daylight lamp conditions. The average ΔE between the presented and selected shade was calculated for each participant under the two lighting conditions. The significance was statistically assessed using a paired t test. RESULTS: The average ΔE between presented and selected shade for individual participants under natural daylight ranged from 0 to 4.84, with a mean of 2.24, while those under daylight lamp conditions ranged from 0 to 3.68, with a mean of 1.14. The difference was statistically significant, with P < 0.0001. CONCLUSION: Daylight lamp conditions significantly improved the shade matching performance of dental students.

Functional and esthetic rehabilitation of mutilated dentition associated with amelogenesis imperfecta.

This clinical case report describes the oral rehabilitation of an adult female patient diagnosed with hypoplastic amelogenesis imperfecta with inadequate, deteriorated restorations of anterior teeth, inadequate clinical crown heights of posterior teeth due to severe attrition of hypoplastic enamel. Treatment included extraction of teeth with poor prognosis, root canal treatment and crown lengthening of severely worn out teeth & full coverage porcelain-fused-to metal fixed restoration of entire dentition. The main objectives of the selected treatment were to enhance the esthetics, restore masticatory function and eliminate the teeth sensitivity. These treatment objectives were successfully met by sequential fixed prosthodontics treatment using Pankey-Mann-Schuyler philosophy of complete occlusal rehabilitation. Treatment not only restored function and esthetic, but also showed a positive psychological impact and thereby improved perceived quality of life.

Rehabilitation of anterior edentulous space by glass fiber reinforced composite removable partial denture during preadolescent period: a case report.

The loss of anterior teeth can be hurtful to the patient both psychologically and socially. In adolescent patients, temporary replacement of the teeth can minimize these concerns. Many approaches have been described for this temporary replacement. This article presents an alternative approach for oral rehabilitation of the preadolescent male who has edentulous space including median palatine suture in the anterior maxilla. High expectations regarding esthetics by the patient were successfully met by utilizing a glass fiber reinforced composite temporary removable partial denture. Restoration remained intact, with no discoloration or deterioration at 12 months recall.