Dimensional changes in buccal cortical bone and lesion volume in teeth with persistent chronic periapical disease subjected to periapical surgery: a cone beam computed tomography study at one year of follow-up.

Background: This study aimed to evaluate changes in buccal cortical bone and lesion volume in teeth with persistent periapical disease one year after periapical surgery using cone-beam computed tomography (CBCT).

Material And Methods: A prospective study was conducted involving patients with persistent periapical disease undergoing periapical surgery, with one year of follow-up. Data collected included patient age, gender, teeth involved, and the number of roots/lesions.

Oral rehabilitation with bone graft and simultaneous dental implants in a patient with epidermolysis bullosa: a clinical case report.

Epidermolysis bullosa (EB) represents a group of mainly hereditary skin disorders, manifested by an exceptional tendency of the skin and mucosa to form bullae and vesicles after minor friction and trauma. Oral features include repeated blistering, scar formation, elimination of buccal and vestibular sulci, and alveolar bone resorption. The use of endosseous implants in the fixed prosthetic rehabilitation of patients with recessive dystrophic EB might provide a considerably better outcome than conventional removable prosthetic methods.

Immediately restored dental implants for partial-arch applications: a study of 12 cases.

Purpose: To study the success of immediate loading in partial-arch applications and to evaluate the level of patient satisfaction.

Materials And Methods: We treated 12 partially edentulous patients, placing 36 implants and rehabilitating them with screw-retained bridges on the same day. The level of satisfaction with the provisional prosthesis was evaluated on a visual analog scale.

Inflammatory implant periapical lesion: etiology, diagnosis, and treatment--presentation of 7 cases.

Purpose: To investigate implant periapical lesions, and to describe their treatment. The hypothesis of this evaluation is that implant periapical lesions are disorders of the area surrounding the apex of a dental implant, and that their etiology can be multifactorial (ie, vascular impairment, vascular ischemia, overheating of bone during drilling, and implant surface contamination). The diagnosis is based on the clinical manifestations and x-ray findings.

Comparative study of wide-diameter implants placed after dental extraction and implants positioned in mature bone for molar replacement.

Objective: The aim of this study was to compare wide-diameter implants placed in mature bone versus implants inserted in postextraction bone.

Material And Methods: A retrospective case study was made; the sample was composed of subjects who had had wide implants placed in the molar area between 2003 and 2005. Two groups were formed: implants placed in mature bone and implants in postextraction bone.

Immediately restored dental implants for partial-arch applications. A literature update.

This article carries out a literature update on immediately restored dental implants in partially edentulous patients. A search was made in Medline of all articles published between the year 2000 and February 2007, including all articles published in both English and Spanish, in which immediate restoration of implants was made of partially edentulous areas with a minimum of 12 implants and six months follow-up. Certain decisive factors exist for the success of this technique in partially edentulous patients, such as primary stability, a roughened implant surface, and the absence of parafunctional habits in patients acceptable for this type of treatment.

Resonance frequency analysis of dental implant stability during the healing period.

Purpose: The objective of the present study was to measure the implant stability quotient (ISQ) values during the osseointegration period, and determine the factors that affect implant stability.

Materials And Methods: To measure implant stability, resonance frequency analysis (RFA) was performed in 24 patients (12 women, 12 men) with a total 64 Defcon implants (10 anterior maxilla, 12 posterior maxilla, 18 anterior mandible, 24 posterior mandible). Bone type was classified according to the Lekholm and Zarb index (52 type II bone, 12 type III).

Failure of locoregional anesthesia in dental practice. Review of the literature.

Correct identification of the causes of dental anesthetic failure is essential in order to adopt the required measures for successful anesthesia. A review is made of the factors implicated in locoregional anesthesia failure, such as a bifid inferior alveolar nerve, retromolar foramen associated to accessory innervation, double or accessory mental foramen, the relation between the infiltration technique and bone density, accessory innervation in the case of the mylohyoid nerve and first cervical branches, cross innervation of the incisors, inactivity in the presence of tissue inflammation, inactive anesthetic solutions, an incorrect technique, and subjective perception on the part of particularly anxious patients. The therapeutic options available in the event such problems are encountered in routine clinical practice are commented.

Update in dental implant periapical surgery.

Implant periapical lesions are infectious-inflammatory alterations surrounding an implant apex, and can be caused by a number of situations--including contamination at instrumentation, overheating of bone, and the prior existence of bone pathology. The diagnosis is based on the clinical manifestations and radiological findings, where a radiotransparency can be seen at periapical level. The lesions are classified according to their evolutive stage as either acute (non-suppurated and suppurated) or chronic (or periapical abscess).

Resonance frequency analysis after the placement of 133 dental implants.

Introduction: The primary stability of dental implants is related to the bone in contact with the latter, and can be evaluated by resonance frequency analysis.

Material And Methods: Measurements were made in 133 implants (62 in the upper jaw and 71 in the mandible) of resonance frequency and insertion force to determine implant stability on the day of surgery, with an evaluation of its relationship to different variables.

Results: The stability quotient of the implants on the day of surgery was 62.