Eduardo Galia Reston

Minimally invasive intervention in a case of a noncarious lesion and severe loss of tooth structure.

The present article describes a minimally invasive technique used for the restoration of loss of tooth structure caused by erosion of intrinsic etiology. First, the cause of erosion was treated and controlled. Subsequently, taking into consideration patient characteristics, especially a young age, a more conservative technique was chosen for dental rehabilitation with the use of composite resin. The advantages and disadvantages of the technique employed are discussed.

Fifteen-year Clinical Follow-up of Restoration of Extensive Cervical Resorption in a Maxillary Central Incisor

Internal bleaching in endodontically treated teeth requires care and protection to prevent harm to the periodontal ligament due to peroxide and may result in external root resorption. There is a myriad of treatment options when this occurs, such as monitoring, extraction, and subsequent rehabilitation with implants or fixed prosthodontics. In some cases, such as the one described here, a conservative attempt to maintain the tooth as a single structure can be made by sealing the resorptive defect. In the present case, we show a multidisciplinary approach where orthodontics, periodontics, and restorative dentistry were involved in treating the maxillary right central incisor (#8) of a 65-year-old patient with extensive cervical resorption, whose chief complaint was esthetics. The proposed treatment was extrusion of the tooth followed by curettage and restoration of the defect with glass ionomer cement. The patient has been followed for 15 years with no signs of recurrence, maintenance of periodontal health, and patient satisfaction with the esthetic outcome.

Orthodontic space closure of lost traumatized anterior teeth – case report

This case report refers to an 11-year-old boy with avulsion of the upper left central and lateral incisors. The teeth were replanted after 4 h, splinted with a semi-rigid splint for 12 days, and then endodontically treated. Severe progressive root resorption was seen after 2 years and the teeth were extracted. The boy had a normal occlusion with spacing in both jaws and slight protrusion of the anterior teeth. The treatment objectives were to close some of the spaces by mesial movement of the buccal segments in the upper jaw to minimize bone loss for a future single osseointegrated implant. Fixed appliance in combination with a removable plate was used for the mesial movements, levelling, and alignment of the upper jaw. Fixed appliance in the lower jaw and Class II traction were used for the final adjustment of the occlusion. A good occlusion with coincident upper and lower midlines and up-righted anterior teeth were achieved. A Maryland bridge was performed as a temporary solution for a future osseointegrated implant.

Root Resorption a 6-Year Follow-up Case Report

This paper describes the clinical course of a pediatric patient developing cervical external root resorption (CERR). An 11-year old male patient had sustained dental trauma and was diagnosed with crown fracture affecting the incisal and middle thirds of the maxillary right permanent central incisor and the maxillary right permanent lateral incisor with pulp exposure and CERR after 24 months. Diagnosis and treatment of CERR are a challenge for dental practitioners. In this case, preservation of natural dentition is shown as a successful treatment in a 6-year follow-up.

10-year Follow-up of Natural Crown Bonding After Tooth Fracture

The aim of this article is to discuss relevant considerations about crown bonding and describe a clinical case in which a tooth fragment and direct composite resin were used to successfully restore a fractured anterior tooth. Clinical examinations showed good esthetics and periodontal health after 10 years of follow-up.

Efeito da intensidade de luz, distância e tempo de fotoativação sobre a interface esmalte-resina composta - análise por microscopia eletrônica de varredura

The aim of this study was to analyze the marginal adaptation in enamel / composite resin interface by scanning electronic microscopy when varying light intensity, distance and light curing time of the material. Twelve teeth were used for preparing forty-eight cavities (2,2 mm diameter x 4 mm deep) in buccal, lingual, mesial and distal surface). The cavities were restored applying a nanofilled resin (SupremeTM, 3M-ESPE) in a single layer, and cured by the following variables: 180 or 580 mW.cm-2, 20 or 40 seconds of irradiation time, 0 mm or 8 mm of distance. The groups were described as: G1 - 20s x 180 mW.cm-2 x 0 mm; G2 - 40s x 180 mW.cm-2 x 0 mm; G3 - 20s x 580 mW.cm-2 x 0 mm; G4 - 40s x 580 mW.cm-2 x 0 mm; G5 - 20s x 180 mW.cm-2 x 8 mm; G6 - 40s x 180 mW.cm-2 x 8 mm; G7 - 20s x 580 mW.cm-2 x 8 mm; G8 - 40s x 580 mW.cm-2 x 8 mm. The restorations were prepared for SEM evaluation intending to analyze enamel / composite resin interface. The results were submitted to Kruskal-Wallis analysis (α = 0,05). Groups 1, 2, 5 and 6 showed better marginal fitting when compared to groups 3, 4 and 7. Group 8 did not show statistical difference. It is possible to conclude that, between groups, the less marginal adaptation was found at the low intensity. Both light curing time and distance did not show influence on marginal adaptation.