LIGATURE-INDUCED MARGINAL INFLAMMATION AROUND OSSEOINTEGRATED IMPLANTS AND ANKYLOSED TEETH - STEREOLOGIC AND HISTOLOGIC OBSERVATIONS IN CYNOMOLGUS MONKEYS (MACACA-FASCICULARIS)

被引:55
作者
SCHOU, S
HOLMSTRUP, P
REIBEL, J
JUHL, M
HJORTINGHANSEN, E
KORNMAN, KS
机构
[1] UNIV COPENHAGEN, FAC HLTH SCI, SCH DENT, DEPT PERIODONTOL, DK-2200 COPENHAGEN, DENMARK
[2] UNIV COPENHAGEN, FAC HLTH SCI, SCH DENT, DEPT ORAL PATHOL & MED, DK-2200 COPENHAGEN, DENMARK
[3] UNIV COPENHAGEN, FAC HLTH SCI, SCH DENT, DEPT ORAL ANAT, DK-2200 COPENHAGEN, DENMARK
关键词
INFLAMMATION HISTOLOGY; OSSEOINTEGRATION; OSTEOCLASTS; ANKYLOSIS; NEUTROPHILS; INFLAMMATION STEREOLOGY; CONNECTIVE TISSUE; LYMPHOCYTES; CELLS; PLASMA; DENTAL IMPLANTS;
D O I
10.1902/jop.1993.64.6.529
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
THE AIM OF THE INVESTIGATION was to provide quantitative and qualitative histologic data on marginal inflammation around osseointegrated implants. The significance of the lack of a periodontal ligament in the initial breakdown phase of supporting tissues in implants was examined by comparing stereologic and histologic manifestations of ligature-induced marginal inflammation around osseointegrated implants with those around ankylosed and normal control teeth in 8 cynomolgus monkeys (Macaca fascicularis). Clinical and radiographic findings have been reported elsewhere. The marginal connective tissue around ligated implants was infiltrated by a significantly increased total number of lymphocytes, plasma cells, and neutrophils compared to non-ligated implants and teeth. The total number of lymphocytes around ligated implants was significantly higher than around ligated ankylosed and normal control teeth. There were, however, no significant differences in the total number of plasma cells and neutrophils within the ligated group. Osteoclasts were exclusively observed around ligated implants and ankylosed teeth. Although variations in microbiota and susceptibility of different jaw positions to periodontal break-down may influence the results of the present study, the results seem to substantiate the theory that marginal inflammation around implants and ankylosed teeth may have more serious implications than does marginal inflammation around teeth with a periodontal ligament. Since presence of osteoclasts was not related to the absence of cervical cementum with inserting gingival fibers around ligated ankylosed teeth, the increased susceptibility of bone loss of implants is probably not caused by the absence of these tissue components. In contrast, the histologic observations seem to support that the increased susceptibility for bone loss around implants may be related to the absence of a periodontal ligament.
引用
收藏
页码:529 / 537
页数:9
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