Management of root-fractured incisors in a 12-year-old followed with implant treatment 7 years after traumatic injury: a case report.

Trauma to the maxillary anterior teeth is a frequent occurrence in children and adolescents. Coronal fractures may now be successfully treated by reattachment of the fractured portions with the latest enamel and dentin bonding agents. Root fractures present with more challenging problems.

Use of onplants as stable anchorage for facemask treatment: a case report.

A hexagonal onplant of 7.7 mm diameter was placed on the palatal bone of the maxilla in an 1-year five-month-old female patient with a Class III malocclusion and midface deficiency. Elastic traction (400 g per side) was applied from a facemask to the onplant at 30 degrees to the occlusal plane 12 hours per day for 12 months.

Single-step, self-etch adhesives behave as permeable membranes after polymerization. Part III. Evidence from fluid conductance and artificial caries inhibition.

Purpose: To test the hypothesis that formation of inhibition zones by bonded restorations in artificially-induced carious dentin lesions is related to the permeability of the self-etch adhesives.

Methods: Fluid conductance of four single-step self-etch adhesives (Prompt L-Pop, Etch&Prime 3.0, One-Up Bond F and Reactmer Bond), and a control two-step self-etch adhesive (UniFil Bond) were measured after sound dentin surfaces were:(1) acid-etched; (2) polished to produce smear layers; (3) bonded with the adhesive; each at 20 cm hydrostatic pressure (hp).

Tensile strength and ultrastructure of a compomer and a composite in aqueous and non-aqueous storage media.

Purpose: To compare the ultimate tensile strength (UTS) of a compomer (Dyract AP) and a composite (Spectrum TPH) that were stored in an aqueous or a non-aqueous medium for up to 180 days.

Methods: 156 hourglass-shaped specimens of each material with cylindrical cross-sectional areas along the test regions were prepared. For each material, 12 beams were stressed to failure using a microtensile testing method to obtain the baseline UTS data.

Guidance of eruption for general practitioners.

The principle of early treatment through well-planned extraction of primary teeth followed by removal of permanent teeth has stood the test of time. The objective of this article is to develop some simple guidelines for general dental practitioners to perform 'guidance of eruption' in malocclusion with severe crowding.

Factors contributing to the incompatibility between simplified-step adhesives and chemically-cured or dual-cured composites. Part I. Single-step self-etching adhesive.

Purpose: To determine if adverse chemical interaction and adhesive permeability are both responsible for the incompatibility between a single-step, self-etching adhesive and chemically-cured or dual-cured composites.

Materials And Methods: Bonding was performed with Xeno CF Bond (Dentsply-Sankin), on either hydrated (H) or dehydrated (DH) human dentin. For microtensile bond strength evaluation, a dual-cured hybrid composite (Bis-Core) was activated using: (1) the light-cured (L) mode (base syringe only), (2) delayed light activation (DL) (base syringe left on top of cured adhesive in the dark for 20 min before activation), and (3) the chemically-cured (C) mode (base and catalyst syringes in the dark).

Clinical evaluation of Dyract AP restorative in permanent molars: 2-year results.

Purpose: To evaluate the clinical behavior of a compomer restorative system, Dyract AP, placed in combination with Non-Rinse Conditioner and Prime&Bond NT in permanent posterior teeth.

Materials And Methods: Fifty Class II and 41 Class I restorations were placed in 39 patients in a dental teaching hospital. The restorations were evaluated directly at baseline and after 6, 12 and 24 months using the modified USPHS-Ryge criteria.

The influence of hygroscopic expansion of resin-based restorative materials on artificial gap reduction.

Purpose: This study compared the effect of water sorption on the extent of marginal gap reduction in two resin-modified glass-ionomer cements (RMGICs), two giomers, two compomers, and two resin composites over a twelve-week storage period.

Materials And Methods: Artificial gaps were created in 160 borosilicate glass cylinders. One-half of the internal surface of each cylinder was blocked out with wax and the other half was sandblasted.