Biomedical subjects

José Balaguer

Publications and source records attributed to José Balaguer.

3 recordsLinked to original sources

PubMed2005

Immediate loading in oral implants. Present situation.

The earliest antecedents of immediate loading were introduced by Ledermann in 1979. He placed overdenture in four interforaminal implants on the same day the surgery was carried out. In the original implantological protocol of Brånemark the immediate loading did not appear indicated, currently, it is being presented as a predictable alternative in several studies. We revised different articles on immediate loading from 1997 to 2002. We analysed different variables and concluded that immediate loading produces a success rate in posterior maxilla similar to the differed loading (90-100%). The characteristics of the implant, favourable to immediate loading, are: screw-shaped, with a rough surface, sand blasted and acid etching processed and a minimum length of 10 mm. The initial stability and a micro movement of the implant, inferior to 150 microm and a marginal to the insertion equal or superior to 32 N/cm are defined as a proper osseous. The bruxism stands out as an adverse factor according to several authors.

Crowns↗

PubMedDate not supplied

Immediate implants after extraction. A review of the current situation.

Immediate implants are positioned in the course of surgical extraction of the tooth to be replaced. The percentage success of such procedures varies among authors from 92.7-98.0%. The main indication of immediate implantation is the replacement of teeth with pathologies not amenable to treatment. Its advantages with respect to delayed implantation include reduced post-extraction alveolar bone resorption, a shortening of the rehabilitation treatment time, and the avoidance of a second surgical intervention. The inconveniences in turn comprise a general requirement for membrane-guided bone regeneration techniques, with the associated risk of exposure and infection, and the need for mucogingival grafts to seal the socket space and/or cover the membranes. The surgical requirements for immediate implantation include extraction with the least trauma possible, preservation of the extraction socket walls and thorough alveolar curettage to eliminate all pathological material. Primary stability is an essential requirement, and is achieved with an implant exceeding the alveolar apex by 3-5 mm, or by placing an implant of greater diameter than the remnant alveolus. Esthetic emergence in the anterior zone is achieved by 1-3 mm sub-crest implantation. Regarding guided regeneration of the alveolar bone, the literature lacks consensus on the use of membranes and the type of filler material required. While primary wound closure is desirable, some authors do not consider it to be of great relevance.

Animals↗

PubMedDate not supplied

Radiologic study of marginal bone loss around 108 dental implants and its relationship to smoking, implant location, and morphology.

PURPOSE: To investigate peri-implant bone resorption around 108 ITI dental implants 1 year after prosthetic loading using extraoral panoramic, conventional intraoral periapical, and digital radiologic techniques. MATERIALS AND METHODS: A total of 108 implants were placed (59 in the maxilla and 49 in the mandible) in 42 patients (16 men and 26 women) with a mean age of 44.2 years (range 14 to 68 years). Orthopantomographic, conventional periapical, and digital radiographs were obtained at loading and again 1 year later. Bone loss was calculated from the difference between the initial and final measurements. RESULTS: Mean loss in alveolar bone height was determined to be 1.36 mm by extraoral panoramic radiography, 0.76 mm by intraoral periapical radiography, and 0.95 mm by digital radiography. The implants located in the maxilla and those placed in patients who smoked 11 to 20 cigarettes per day were associated with significantly greater bone loss. DISCUSSION: The results in relation to peri-implant bone loss in the first year after loading were similar to those published by other authors. CONCLUSION: Conventional periapical films and digital radiographs were more accurate than orthopantomography in the assessment of peri-implant bone loss. Smoking and implant location in the maxilla were associated with increased peri-implant marginal bone resorption.

Adolescent↗