Some clinical factors related to rate of resorption of residual ridges. 1962

Journal of Prosthetic Dentistry (Impact Factor: 1.75). 09/2001; 86(2):119-25.
Source: PubMed


Bone resorption of residual ridges is common. The rate of resorption varies among different individuals and within the same individual at different times. Factors related to the rate of resorption are divided into anatomic, metabolic, functional, and prosthetic factors. Anatomic factors include the size, shape, and density of ridges, the thickness and character of the mucosal covering, the ridge relationships, and the number and depth of sockets. Metabolic factors include all of the multiple nutritional, hormonal, and other metabolic factors which influence the relative cellular activity of the bone-forming cells (osteoblasts) and the bone-resorbing cells (osteoclasts). Age, sex, and general health are inadequate to describe the bone factor but do give some clinical clues. Functional factors include the frequency, intensity, duration, and direction of forces applied to bone which are translated into cellular activity, resulting in either bone formation or bone resorption, depending on the patient's individual resistance to these forces. Prosthetic factors include the myriad of techniques, materials, concepts, principles, and practices which are incorporated into the prostheses. Although the various factors can be divided into these four groups for academic purposes, they are all interrelated, and any one factor may be evaluated only if we place it in its proper perspective to all factors. Since bone resorption depends on the response of living cells to force, the more basic sciences concerned with the physiology and pathology of cells are understood, the more educated will be our clinical judgment.

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    • "Durante estos procesos biológicos, la lámina dura del hueso alveolar pierde su protección y esto la hace más vulnerable a los procesos de reabsorción. Allen, en 1957 (citado por Atwood en el 2001) (2), pionero en el estudio del fenómeno de reabsorción ósea alveolar , describe esta como el proceso en el cual los osteoclastos eliminan el tejido óseo por medio de liberación de minerales y transferencia de iones. Estos osteoclastos se unen al tejido óseo y liberan enzimas de tipo colagenasa que participan en el proceso de reabsorción ósea. "

    Preview · Article · Sep 2014
    • "After extraction, stimulation is lost to the alveolar bone and the pressure from dentures cause bone resorption.[3435] The resorption rate varies with from individual to individual and at varying levels in the same individual.[323336] "
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    No preview · Article · Apr 2013
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    • "The peri-implant bone loss observed in the implants placed on distracted alveolar bone in our study was similar to what had been described in previous research regarding implants placed on native bone (13,22). Furthermore, some of these publications show higher average bone loss than our results (25-27). Some of the patients of the Distraction Group did not show peri-implant resorp-tion. "
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    ABSTRACT: Introduction: Vertical osteogenic alveolar distraction (VOAD) allows for the augmentation of the alveolar ridge for the placement of dental implants in atrophic alveolar ridges. The goal of this paper is to assess long-term peri-implant bone resorption in implants placed on bones subjected to VOAD, comparing it with a group of patients who had implants placed directly on the alveolar bone without previous bone regeneration. Material and Methods: We conducted a follow-up study on 32 patients who were divided into two groups: The Distraction Group (14 patients), and the Distraction-Free Group (18 patients), who received a total of 100 implants. Peri-implant bone loss was measured by means of panoramic X-rays, at the time of loading and one year later, and in 35 implants of each group after 3 years of functional loading. Results: The peri-implant bone resorption (PBR) average observed in the Distraction Group at the time of prosthetic placement is higher (0.50±0.09 mm) than in the Distraction-Free Group (0.25±0.06 mm), showing statistically significant results (p=0.047). PBR levels 1 year after loading were the same for both groups (0.66 mm). At 3 years, they were higher in the Distraction Group (1.03 ± 0.22 mm vs. 0.68 ± 0.08 mm). Key words:Bone resorption, alveolar distraction osteogenesis, dental implants.
    Full-text · Article · Mar 2013 · Medicina oral, patologia oral y cirugia bucal
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