摘要:

Summary.The incidence of pulpal damage beneath cavities filled with ASPA, Chemfil and Chembond was studied in class I cavities in human premolar teeth after 1–10 days, 11–30 days, and 31 or more days. Cavities filled with Kalzinol or zinc oxide/eugenol acted as controls. All glass ionomer cements were accompanied by more pulpal damage than controls, but Chemfil was associated with the least changes. Bacteria were demonstrated at the material/cavity wall interface in a number of cavities with all materials, although no significant correlation was demonstrated between them and pulpal inflammation. The use of a base is recommended in cavities where large numbers of previously unaffected dentinal tubules are pres

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00381.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Summary.The relative cytotoxicity of five root canal sealers was measured by adding various concentrations of freshly mixed and set sealers to cultures of either HeLa or human fibroblast cells. The toxicity was determined by cell survival, which was measured by subsequent incorporation of [3H]‐thymidine into the nucleic acid components of each cell type used. The results showed that all sealers are cytotoxic in both fresh and set states. The ranking of toxicity of sealers on HeLa cells was similar to the one obtained for fibroblasts. Comparison of the results of this study with those of previous investigations questions the value of ranking sealers based only upon their effectsin vitr

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00382.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Abstract.This study evaluated the apical leakage associated with three methods of root canal obturation; these were laterally condensed gutta‐percha with and without custom‐fined master cones and a single silver point technique. Two different sized canals were used. An analysis of linear dye leakage was performed for large canals and a technique of dye recovery and spectrophotometric analysis was used to examine the volume of leakage in both large and small canals.Laterally condensed gutta‐percha with custom‐fitted master cones resulted in less volume of apical leakage than did non‐custom‐fitted laterally condensed gutta‐percha or

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00383.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Abstract.A method has been devised for mounting human skulls on the support normally used for phantom heads in the laboratory and in the clinic. It enables techniques used in endodontics to be practised without inconvenience or hazard to the patient.

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00384.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Summary.. The replanted upper central incisor of a 9‐year‐old patient suffered severe inflammatory root resorption. The resorptive process was halted by the removal of necrotic pulp tissue followed by dressings of calcium hydroxide. The root canal was debrided using indirect ultrasound and irrigated with 3 per cent sodium hypochlorite solution. Technical difficulties complicated root canal obturat

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00385.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Summary.A cyst was removed from the right maxilla and diagnosed by a hisiopathologist as being ‘globulomaxillary’ in origin. The area failed to heal until conservatrve endodontic therapy was undertaken for three adjacent teeth. Prior to the enucleation the vitality of these teeth had only been tested by the response to ethyl chloride. On its own, this test is considered to be inadequate for the confirmation of ‘vital’ teeth which is necessary if the cyst is to be diagnosed as ‘globulomaxillary’. Very grave reservations already exist in relation to the concept of ‘globulomaxillary cysts’ and the term is again deprecated because the adjacent teeth were non‐vital and the area only healed following endodontic therapy.Calcium hydroxide was used as an intermediate dressing and one tooth was obturated using a combination of calcium hydroxide and amalgam.The patient had also had radiotherapy following the removal of a medulloblastoma 12

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00386.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

摘要:

Book reviewed in this article:Enseignement d'Odontologie Conservatrice, Vols 1 and 2 ‘Pratique Endodontique’ (in French)J. C. Hess, Maloine S.A.Clinical and Surgical Endodontics. Concepts in Practice.A. L. Frank, J. H. S. Simon, M. Abou‐Rass&D. H. Click, J. B. LippincottReaction Patterns in Human TeethEd. I. A. MjorA Radiological Atlas of Diseases of the Teeth and JawsR. M. Browne, H. D. Edmondsonn and P. G. J.

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00387.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00388.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00389.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY

ISSN:0143-2885    

DOI:10.1111/j.1365-2591.1984.tb00390.x

出版商:Blackwell Publishing Ltd    

年代:1984

数据来源: WILEY