Resposta pulpar a longo prazo a restaurações com cimento de silicato boston estudo histológico em dentes de cães
Long term pulp reaction to silicate cemcnt Boston. Histological study on teeth of dogs
Sundfeld, R.H.; Russo, M.; Takayama, S.; Komatsu, J.; Holland Júnior, C.; Quintella, L.P.A.S.; Castro, M.A.M.
Rev. odontol. UNESP, vol.13, nÚnico, p.1-4, 1984
Resumo
Os autores estudaram o comportamento da polpa dental de cães frente a restaurações com cimento de silicato. Após 400 dias da realização dessas restaurações, o exame histológico demonstrou ser esse cimento um irritante pulpar.
Palavras-chave
Cimento de silicato, alterações pulpares
Abstract
On the buccal surface of 35 permanent teeth of dogs, deep Class V cavities were prepared with diamond points at high speed with air-waler spray. Eigth teeth were lined with paraffin wax and filled with silver amolgam to be used as control. The remmant twenty-seven cavities were filled with silicate cement Boston. Four thousand days later, the teeth were extracted and prepared for histological analysis. The average thickness of the remmant dentine varied between 24 and 544 micromelers. The control teeth presented normal morphological picture. Sixteen out of 27 teeth had pulp tissue free from inflammatory reaction; the pulps of the remaining 11 specimens exhibited a little quantify of chronic inflammatory cells and only under the cavity floors. Thus, according to the methodology employed. the use of a proper lining, before filling with the silicate cement Boston is recomended.
Keywords
Silicate cemenr, pulp reactions
References
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2. HANSEN, H.P. & BRUUN, C. - Long-term pulp reaction to silicate cement with on intradental control. Scand.1. denl. Res., 79:422-429,1971.
3. JHARA, K.; JSHJKAWA, T. & SEKJNE, N. - A clinico-pathological study of pulp responses caused by various kinds of silicate cement restorations. Buli, Tokiodent. ColI., /4:5-17, 1973.
4. JOHNSON, R.H.; CHRJSTENSEN, G ..I.; STJGERS, R.W. & LASWELL, H. - Pulpal irritation due to the phosphoric acid component of silicate cement. Oral Surg., 29:447-454, 1970.
5. MITCHELL, D.F.; BUONOCORE, M.G. & SHAZER, S. - Pulp reaction to silicate ccment and other materiais: relation to cavity deptn . .I. dento Res., 41:591-595,1962.
6. RUSSO, M. - Cimento de silicato. Estudo histoquimico das alterações pulpares. Rev. F.O.A., 2:1-22, 1966.
7. RUSSO. M.S.; KOMATSU, .I.; TAKAYAMA. S.V; HOLLAND, C. .Ir.; SASAKI, T. & QUINTELLA, L.P.A.S. - Histological evaluation of the pulpal reaction to Fotofil restorations. Rev. Odont. UNESP, /0:11-14, 1981.
8. ZANDER, H.A. - The reaction of dental pulps to silicate cements. 1. Amer. dento Ass., 33:1233-1243,1946.
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