摘要:

Freeze‐dried boneallografts (FDBAs) were evaluated alone and in combination with various types of autogenous bone in the treatment of periodontal osseous defects. A total of 381 defects were evaluated by surgical reentry approximately 1 year after grafting. Reentry data were compared with similar data obtained when the grafts were placed. Osseous regeneration and pocket reduction were rated as complete, greater than 50%, less than 50%, or failed. Complete or greater than 50% regeneration was considered successful. When compared with FDBAs, composite freeze‐dried bone allografts/autogenous bone grafts (FDBA/ABGs) appear to offer significantly improved results in both osseous regeneration and pocket reduction. Use of composite FDBA/ABGs resulted in significant improvement in the treatment of combination one/two‐wall defects and furcation involvements. A trend of improvement was seen with two‐wall defects. The surgical data indicated that complete wound closure and the use of antibiotics enhanced graft success. The results also indicated that the presence of endodontically obturated teeth may be a consideration in the success or failure of the graft.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.1.1

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

Citric aciddemineralization of root surfaces to enhance new attachment clinically appears to be successful, but histologic evidence of new attachment in humans is lacking. Two recession‐like defects were surgically created on the facial aspect of mandibular incisors scheduled for extraction in five patients. Each patient had differing degrees of periodontal disease, but the control and experimental teeth of each were similarly involved. The roots were thoroughly planed and an apical reference notch was inscribed just coronal to crestal bone. One tooth served as the control, while the experimental tooth was treated with citric acid (pH 1) for two minutes. Two full‐thickness laterally positioned flaps were done to cover the roots. After healing periods of 1, 2, 4, 12, and 20 weeks, the teeth were removed by block section for histologic evaluation. The type of attachment differed on the teeth with longer healing periods. The control teeth exhibited a long epithelial attachment with no evidence of cementogenesis, whereas the experimental teeth had a connective tissue attachment to newly formed cementum coronal to the reference notch. These observations provide evidence that demineralization of root surfaces may promote increased or accelerated connective tissue attachment of laterally positioned flaps.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.1.9

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

The purposeof this study was to determine the prevalence and severity of gingivitis in a sample of primary school children. One hundred and twenty eight children with an average age of 6 years 0 months (SD ± 4 months) were examined for oral hygiene status using the Plaque Index (Pl.I.) and the Calculus Index (C.I.). The periodontal status was assessed using the Gingival Index (G.I.) and recording gingival sulcus depths about selected teeth. The significance of factors associated with the G.I. was determined using multiple classification analysis. The incorporated factors were Pl.I., age and sex. The scores for Pl.I., and G.I., and Pl.I. and sulcus depth were significantly correlated. The majority of children had a maximum Pl.I. score of 2, a maximum C.I. score of 0, a maximum G.I. score of 1, and maximum sulcus depth of 2 mm. The regressands Pl.I. and age used in the multiple classification analysis explained only 28% of the variance in the G.I. data. Also, the analysis did not indicate the children's sex as a significant source of explanation for the variance of the G.I.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.1.19

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

Immediate hypersensitivityreactions were induced in the periodontium and skin of monkeys sensitized with novo alcalase. Animals were challenged in the gingival papillae with 0.1, 1.0, and 10μg of antigen for 1, 3, 5, or 7 consecutive days prior to sacrifice. At the same time, skin sites were challenged with 1μg of antigen. With repetitive immediate hypersensitivity reactions, the inflammatory infiltrate changed from one characterized by polymorphonuclear leukocytes to one characterized by plasma cells and lymphocytes. The repetitive gingival exposure to bacterial antigens which occur in periodontal disease could lead to repetitive immediate hypersensitivity reactions. Such reactions could play a role in the histopathology of human periodontal disease.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.1.23

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

Marginal periodontitisand pulpal disease often cause similar‐appearing lesions in the periodontium. Successful therapy depends on correct diagnosis, which is sometimes difficult. Some bony defects caused by pulpal disease require surgical debridement in addition to standard endodontic therapy.With one exception three‐walled intrabony periodontal defects discussed in this report were managed by surgical debridement without any type of implant or graft. Long‐term observation is required to determine the value of techniques used in the treatment of intrabony periodontal defects.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.1.29

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

This descriptive studycompared the healing of mucoperiosteal and “stimulated” osteoperiosteal flaps for the treatment of surgically created periodontal recessions in dogs. Surgically created defects on the canine teeth of 10 healthy mongrel dogs were covered by specially designed, cemented copper bands for 4 weeks (Several maxillary premolar teeth were managed in the same way). A plaque and calculus‐promoting diet was fed to the animals during this period. When the bands were removed the diet was altered and an intensive oral hygiene program was instituted. The contralateral tooth, chosen randomly, was utilized for placement of the mucoperiosteal lateral sliding flap and acted as the control. The experimental side was surgically stimulated 21 days prior to elevation of a “stimulated” osteoperiosteal flap for repositioning over the denuded roots. The animals were sacrificed with an overdose of Nembutal and block sections for histologic study were taken at periods ranging from 14 to 50 days. Histologic findings indicate that healing of the stimulated flaps was accompanied by the formation of a relatively short dentogingival epithelium, cementogenesis which varied in amount and type, and new connective fiber insertion into cementum. By contrast, the mucoperiosteal flaps healed with a long dentogingival epithelial relationship and no cementogenesis or connective tissue reattachment.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.1.36

出版商:Wiley    

年代:1983

数据来源: WILEY

摘要:

A 13‐year‐old femalewith varying degrees of vertical bone loss at the mesial surfaces of three first molars was treated by plaque control instruction, root planing and curettage of all sites and autologous tooth transplant into an extraction site, an autogenous iliac marrow graft at the second site, and passive eruption and osteoplasty at the third site. Two siblings had evidence of juvenile periodontitis and the mother had isolated bone defects involving some molars. Radiographic records were obtained of one of the male siblings at age 9 years and 10 months and 7 years and 10 months later, as well as of the mother. The male sibling had no evidence of bone loss at 9 years and 8 months, but advanced lesions were present at age 17 years and 8 months. Patterns of bone loss and teeth and tooth surfaces affected were different among the three family members studied. After 5 years, the three treated sites had normal sulcular depths. Bone regeneration was prominent at the marrow transplant site and tooth transplant site. Treatment was successful from a regenerative and stability point of view over a 5‐year period.

ISSN:1049-8885    

DOI:10.1902/jop.1983.54.1.44

出版商:Wiley    

年代:1983

数据来源: WILEY