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The dental patient. Vol. I. Clinical dentistry
38
J. Dent. 1991;19:
No. 1
which afford considerable protection for the sealant in lateral excursion. This presents a very stable occlusal coverage in the clinical period beyond the 6 month period. Conversely, the mandibular premolars, particularly the mandibular first premolar, present a more open anatomy. This results in a more progressive loss of sealant as measured by all three parameters. It is a general consideration that if the sealant can survive to 30 months, then there is less chance of further change and, therefore, the fissures remain protected. Sealant coverage is fundamentally an extracoronal addition of sealant onto the existing anatomy. In this respect it is uniquely different from an intracoronal restoration. The intracoronal restoration may wear, but the coverage is fixed and defined by the outline form of the cavity (Lugassy,A-985). The occlusal coverage for sealants is not a fixed value and is influenced by the volume loss in different ways. The present study shows that the maxillary premolars are likely to demonstrate more stability of occlusal coverage over the long term compared to the corresponding lower premolars. Acknowledgements The authors wish to express their appreciation to Dr Louise B. Messer for her assistance in the initial years of the study. This research was supported in part by NIH grant No. 2S07-RR-05322.
References Braem M., Lambrechts P., Vanherle G. et al. (1987) Three year quantitative in-viva wear results of four posterior composites. J. Dent. Rex 66, (Abstr. 477), 166.
Conry J. P., Pintado M. R. and Douglas W. H. (1989) Clinical volume loss of fissure sealant at 6 months. J. Dent. Res. 68, (Abstr. 452), 923. Conry J. P., Pintado M. R. and Douglas W. H. (1990) Measurement of fissure sealant surface area by computer. Quintessence lnt. 21, 27-33. Cueto E. I. and Buonocore M. G. (1965) Adhesive sealing of pits and fissures for caries prevention. lADR Program and Abstracts of Papers, 43rd General Meeting, (Abstr. 4OO), 137. DeLong R., Pintado M. and Douglas W. H. (1985) Measurement of change in surface contour by computer graphics. Dent. Mater. 1, 27-30. Gonzales C. D., Frazier P. J. and Messer L. B. (1988) Sealant knowledge and use by pediatric dentists: 1987 Minnesota survey. .T.Dent. Child. 55,434-440. Horowitz k M. and Frazier P. J. (1982) Issues in. the widespread adoption of pit-and-fissure sealants. .I. Public Health Dent. 42, 312-323. Jensen 0. E., Handelman S. L. and Perez-Diez F. (1985) Occlusal wear of four pit and fissure sealants over two years. Pediatr. Dent. 7, 23-29. Jerrell R. G. and Bennett C. G. (1984) Utilization of sealants by practicing pedodontists. J. Pedodont. 8, 378-386. Leinfelder K. F. (1985) Evaluation of clinical wear of posterior composite resins. In: Vanherle G. and Smith D. C. (eds), Posterior Composite Resin Dental Restorative Materials. The Netherlands, Peter Szulc, pp. 501-509. Lugassy A. A. (1985) Laboratory model for the quantification of clinical occlusal wear. J. Dent. Res. 64, (Abstr. 63), 181. Pintado M. R, Conry J. P. and Douglas W. H. (1988) Measurement of sealant volume in vivo using image processing technology. Quintessence ht. 19, 613-617. Ripa L. W. (1985) The current status of pit and fissure sealants: a review. Can. Dent. Assoc. J. 5, 367-379. Simonsen R. J. (1987) Retention and effectiveness of a single application of white sealant after 10 years. J. Am. Dent. Assoc. 115, 31-36. Wilson N. H. F., Wilson M. A. and Smith G. A. (1988) A clinical trial of a visible light cured posterior composite resin restorative material: four-year results. Quintessence ht. 19, 133-139.
Book Review The Dental Patient. Vol. I. Clinical Dentistry. Edited by C. Scully. Pp. 252. 1989. Oxford, Heinemann. Hardback, f 35.00.
There are a number of undergraduate texts available on the market which cover that difficult transition to becoming a clinical student. Volume I of the present series (we are promised four volumes) has to have a unique style that will make it an attractive book to buy and, once bought, read. The Dental Patient manages this well, for it is very well illustrated, committed heavily to tabular summaries of information and has further reading lists for the diligent. The pages are wide and the typeface easy to read. Photographic manipulation of illustrations demands firm editorial work: mostly, this has been achieved, but inevitably there are exceptions. Some of the photographs have been perfectly judged so as to show the part in question with its identifying anatomical features; a few are less so, with unnecessary material
that distracts the reader. The quality of reproduction of the radiographs and CT scans is generally poor, due to loss of both contrast and detail. This volume is edited by Professor Scully of Bristol Dental School, who is also the largest contributor. Much of the material can be found in his other textbooks that describe the subject of general diagnosis and management in more detail, yet throughout there is an appealing freshness and selective exclusion of detail. Some of the 10 chapters have more than one author, resulting in changes both in style and in presentation of the line drawings. Certain chapters are especially well written, for example ‘The Principles of Prescribing’; it will be hard to find a better vignette for the new clinical student. Perioperative management covers both consent as well as the practical aspects of full operating theatre conditions. There is some cross-referencing but the index is satisfactory. In all, a worthy book but it does compete with others on the market, including more by the same author. H. Cannell
J. Dent. 1991;19:
No. 1
which afford considerable protection for the sealant in lateral excursion. This presents a very stable occlusal coverage in the clinical period beyond the 6 month period. Conversely, the mandibular premolars, particularly the mandibular first premolar, present a more open anatomy. This results in a more progressive loss of sealant as measured by all three parameters. It is a general consideration that if the sealant can survive to 30 months, then there is less chance of further change and, therefore, the fissures remain protected. Sealant coverage is fundamentally an extracoronal addition of sealant onto the existing anatomy. In this respect it is uniquely different from an intracoronal restoration. The intracoronal restoration may wear, but the coverage is fixed and defined by the outline form of the cavity (Lugassy,A-985). The occlusal coverage for sealants is not a fixed value and is influenced by the volume loss in different ways. The present study shows that the maxillary premolars are likely to demonstrate more stability of occlusal coverage over the long term compared to the corresponding lower premolars. Acknowledgements The authors wish to express their appreciation to Dr Louise B. Messer for her assistance in the initial years of the study. This research was supported in part by NIH grant No. 2S07-RR-05322.
References Braem M., Lambrechts P., Vanherle G. et al. (1987) Three year quantitative in-viva wear results of four posterior composites. J. Dent. Rex 66, (Abstr. 477), 166.
Conry J. P., Pintado M. R. and Douglas W. H. (1989) Clinical volume loss of fissure sealant at 6 months. J. Dent. Res. 68, (Abstr. 452), 923. Conry J. P., Pintado M. R. and Douglas W. H. (1990) Measurement of fissure sealant surface area by computer. Quintessence lnt. 21, 27-33. Cueto E. I. and Buonocore M. G. (1965) Adhesive sealing of pits and fissures for caries prevention. lADR Program and Abstracts of Papers, 43rd General Meeting, (Abstr. 4OO), 137. DeLong R., Pintado M. and Douglas W. H. (1985) Measurement of change in surface contour by computer graphics. Dent. Mater. 1, 27-30. Gonzales C. D., Frazier P. J. and Messer L. B. (1988) Sealant knowledge and use by pediatric dentists: 1987 Minnesota survey. .T.Dent. Child. 55,434-440. Horowitz k M. and Frazier P. J. (1982) Issues in. the widespread adoption of pit-and-fissure sealants. .I. Public Health Dent. 42, 312-323. Jensen 0. E., Handelman S. L. and Perez-Diez F. (1985) Occlusal wear of four pit and fissure sealants over two years. Pediatr. Dent. 7, 23-29. Jerrell R. G. and Bennett C. G. (1984) Utilization of sealants by practicing pedodontists. J. Pedodont. 8, 378-386. Leinfelder K. F. (1985) Evaluation of clinical wear of posterior composite resins. In: Vanherle G. and Smith D. C. (eds), Posterior Composite Resin Dental Restorative Materials. The Netherlands, Peter Szulc, pp. 501-509. Lugassy A. A. (1985) Laboratory model for the quantification of clinical occlusal wear. J. Dent. Res. 64, (Abstr. 63), 181. Pintado M. R, Conry J. P. and Douglas W. H. (1988) Measurement of sealant volume in vivo using image processing technology. Quintessence ht. 19, 613-617. Ripa L. W. (1985) The current status of pit and fissure sealants: a review. Can. Dent. Assoc. J. 5, 367-379. Simonsen R. J. (1987) Retention and effectiveness of a single application of white sealant after 10 years. J. Am. Dent. Assoc. 115, 31-36. Wilson N. H. F., Wilson M. A. and Smith G. A. (1988) A clinical trial of a visible light cured posterior composite resin restorative material: four-year results. Quintessence ht. 19, 133-139.
Book Review The Dental Patient. Vol. I. Clinical Dentistry. Edited by C. Scully. Pp. 252. 1989. Oxford, Heinemann. Hardback, f 35.00.
There are a number of undergraduate texts available on the market which cover that difficult transition to becoming a clinical student. Volume I of the present series (we are promised four volumes) has to have a unique style that will make it an attractive book to buy and, once bought, read. The Dental Patient manages this well, for it is very well illustrated, committed heavily to tabular summaries of information and has further reading lists for the diligent. The pages are wide and the typeface easy to read. Photographic manipulation of illustrations demands firm editorial work: mostly, this has been achieved, but inevitably there are exceptions. Some of the photographs have been perfectly judged so as to show the part in question with its identifying anatomical features; a few are less so, with unnecessary material
that distracts the reader. The quality of reproduction of the radiographs and CT scans is generally poor, due to loss of both contrast and detail. This volume is edited by Professor Scully of Bristol Dental School, who is also the largest contributor. Much of the material can be found in his other textbooks that describe the subject of general diagnosis and management in more detail, yet throughout there is an appealing freshness and selective exclusion of detail. Some of the 10 chapters have more than one author, resulting in changes both in style and in presentation of the line drawings. Certain chapters are especially well written, for example ‘The Principles of Prescribing’; it will be hard to find a better vignette for the new clinical student. Perioperative management covers both consent as well as the practical aspects of full operating theatre conditions. There is some cross-referencing but the index is satisfactory. In all, a worthy book but it does compete with others on the market, including more by the same author. H. Cannell