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At least 631 records · Page 35Linked to original sources
PubMed1989

[Bleaching of discolored root canal treated teeth. 3- and 5-year postoperative results].

In this study a simple and time-saving method for internal bleaching of discolored root-filled teeth is presented. The method used sodium perborate moistened with water and the access cavity temporarily sealed with Cavit between visits. Bleaching was carried out in 95 teeth, with a satisfactory initial result in 90% of the cases. After 3 years of observation, recurrence of discoloration was found in 20% of the teeth seen at follow-up examination. After 5 years of observation a total of 29.4% showed discoloration or recurrence of discoloration. The method is easy, fast and essentially without complications. It is therefore recommended as an alternative to full crown restoration, assuming the tooth is not too weakened because of large fillings.

Adolescent↗
PubMedDate not supplied

Incorporating flowable composites into the minimally invasive treatment sequence for aesthetic enhancement.

The conservative correction of stained anterior dentition is well-suited to minimally invasive techniques that first incorporate in-office, light-activated bleaching, and take-home, dentist-monitored tray bleaching. The second most conservative approach is the placement of direct composite restoratives, including recently introduced flowable varieties that help the clinician more precisely and predictably place these materials. This article demonstrates a conservative treatment sequence for in-office bleaching and direct composite placement for the aesthetic correction of discolored anterior maxillary dentition.

Adult↗
PubMedDate not supplied

Microabrasion: effect of time, number of applications, and pressure on enamel loss.

Enamel microabrasion using hydrochloric acid and pumice is an effective method to remove superficial enamel discoloration. This procedure is used in many dental offices but little is known about how different treatment combinations of hand applicator pressure on the tooth, number of applications, and duration of application affect the amount of enamel loss. This investigation studied variables of time, number of applications, and pressure individually and in combination. Twenty-seven extracted premolars were hand rubbed with an 18% HCL-pumice mixture at time intervals of 5, 10, and 20 sec and 5, 10, and 15 applications under pressures of 10, 20, and 30 g. Fifty-four longitudinal sections were cut from the treated sections and measured for enamel loss (P < 0.05). Enamel loss significantly increased as each variable separately increased. When two variables increased at the same time, a greater amount of enamel loss occurred than when one increased. The combination of 10 ten-sec applications or 15 five-sec applications with 20 g pressure resulted in enamel loss of slightly less than 250 microns.

Acid Etching, Dental↗
PubMedDate not supplied

The effect of core translucency on the aesthetics of all-ceramic restorations.

Recent advances in ceramic technology have revolutionized aesthetic dentistry. When treating a single anterior tooth in need of a full-coverage restoration, a multitude of options in restorative materials and techniques is available to the clinician. The learning objective of this article is to present and evaluate a selection of all-ceramic dental materials currently available for aesthetic full-coverage crown restorations. When selecting an all-ceramic system, there are several major factors to consider, including the inherent translucency of the ceramic material and of the adjacent dentition, the color of the prepared tooth, and the forces anticipated in that region. Preparation and restoration of discolored and nondiscolored tooth structure are reviewed. The techniques presented can be utilized to obtain predictable results in the anterior region for aesthetic all-ceramic full-coverage restorations.

Color↗