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Preparation of the periodontium for restorative dentistry dentistry
J. Dent. 1991;
19: 323-324
323
Book Reviews Section
Editor: P. N. Hirschmann
Atlas of Porcelain Restorations. H. Denisen, C. Mangano, V. Nava and M. S. Sangalli. 94. 1990. Padua, Piccin Nuova. Hardback, f30.00.
Pp.
Although this book is described as an atlas which demonstrates in detail both clinical and laboratory procedures related to a range of porcelain restorations, the contents are somewhat more limited than appears at first sight. There are 10 chapters with a total of 204 illustrations in 94 pages; 27 references are cited. The translation from the original Italian is not free of error. The book opens with a general introduction to porcelain restorations which covers some basic dental materials science related to ceramics without discussing the fundamental properties of the structure and chemistry of aluminous and non-aluminous porcelains. Presumably, the glass described as having a silicon structure means an Si Li Ca structure. Several shortcomings in conventional restorations are highlighted, and the use of an adhesive composite system for bonding porcelains to tooth tissue is advocated. The clinical procedures for porcelain veneers is described next, generously illustrated. Although removal of 0.5 mm of labial enamel is described, the clinical example suggests that more radical reduction has been carried out. Use of a light-cured composite resin luting agent is recommended, but reference to dualactivated cements is made neither here nor, and more significantly, later in dealing with porcelain partial crowns. Nor do the authors refer to any form of occlusal evaluation following cementation, a procedure which may well be taxing and very time consuming. Figures 1061 14 in Chapter 6 illustrate the full mouth rehabilitation of a patient with amelogenesis imperfecta, without any reference to initial occlusal evaluation or details of the technical work required. Despite the copious illustrations, the text is too superficial with too many omissions for this book to be widely recommended. A. J. E. Qualtrough
Wax-Up for Functional Occlusion. N. P. Lang, A. Gipp and A. Grendelmeier. Pp. 27. 1989. New Malden, Quintessence. Spiral, f 14.00. This is an extremely well presented booklet which is in keeping with the usual high standards of Quintessence. There are 27 pages and 28 illustrations that make up the two chapters and four-page glossary of specialized terminology. The first chapter discusses the principles of occlusion and the merits of point centric and freedom in centric as gnathological occlusal concepts. It is made clear that whereas the former relies on tripodization to stabilize every occlusal contact, the latter has a flat region built up between retruded contact position and maximal intercuspation to provide a slide free of interferences between the positions. It is a proven therapeutic occlusal concept which enables the temporomandibular joint and @ 1991 Butterworth-Heinemann 0300-5712/91/050323-02
Ltd.
its associated muscles to remain in harmony. Having established the merits of freedom in centric, the second chapter is a step-by-step guide to waxing up in long centric utilizing the P. K. Thomas technique and based on a tooth-to-two teeth relation with marginal ridge and fossa contacts, although it is acknowledged that this is not always possible. This booklet is probably aimed at the dental student and technician but all dentists interested in occlusion and restorative techniques would benefit from reading it. At f 14.00 it represents reasonably good value. W. G. Jenkins
Preparation of the Periodontium for Restorative Dentistry. Edited by P. A. Fugazzotto. Pp. 1 14. 1990. lshiyaku Euro America (distributors Gazelle Book Services, Lancaster). Hardback, f58.75. A picture atlas can provide a useful method for reinforcing, and possibly developing, new clinical skills. It should comprise clear photographs and diagrams with concise explanations of established but up-to-date techniques. The aim of this book, which is the second in a series which will describe clinical techniques from various dental disciplines, is to illustrate periodontal surgical methods which should be carried out before the provision of crowns and bridges. This book is principally a practical manual and it is therefore acceptable that the legends and brief introductions to each section are not bristling with references. The layout is clear and the order is generally logical, although the various treatment cases tend to merge and emphasis is not placed on the more common clinical situations. Unfortunately, some of the photographs are repetitive and others do not satisfactorily illustrate the points made in the legends. The diagrams are not of the same clarity as the photographs and some have been printed upside down, Occasionally, radiographs are used to illustrate clinical cases although many are of poor quality. Traditional surgical procedures are described, showing bony resective techniques and methods to gain attached gingiva. There is an adequate explanation of the minimum biological width in order that periodontal health can be maintained. Excellent results are shown after apical positioning of mucogingival flaps whether to lengthen crowns to improve retention of restorations or to help maintain gingival health when there are subgingival restorative or fractured tooth margins. Radical approaches are adopted both in extractions to avoid potentially compromising adjacent teeth and odontoplasty to eliminate incipient furcation involvement and attain an ideal tooth emergence profile. Emphasis tends to be placed on surgical techniques at the expense of the diagnostic, treatment and prognostic considerations in combined periodontal/restorative treatment. Additional information would have been helpful on the role of root resection when there is furcation involvement and on the
324
J. Dent. 1991; 19: No. 5
methods to augment alveolar ridges following the extraction of anterior teeth. The completed restorative treatment of follow-up results are often not shown, possibly because many of the patients had been referred for periodontal treatment alone. Regrettably, the importance of meticulous plaque control is not emphasized. These reservations, together with the expense, mean this book will have only a limited audience. J. R. Radford
Applied Dental Materials. J. F. McCabe. Pp. 199. 1990. Oxford. Softback, f 19.95.
Blackwell Scientific,
This is the seventh edition of the now classic textbook covering both dental materials and dental materials science. The author is to be commended for attempting to include an extensive material science perspective into the discussion of the former. This is always difficult and all too often becomes simply a discussion of techniques or procedures. The book is organized into two introductory chapters, 1 1 focusing on the materials used by dental technicians, six on those used in indirect procedures and the final 10 in direct restorative dentistry. While the author has specifically chosen this structure so as to provide information for dentists, technicians, and perhaps other dental auxiliaries, this results in less than half the book focusing on the materials encountered in dental practice. Many of the 29 chapters are very short and could be logically combined: it is not clear why there are four on dental cements. Despite a valiant attempt to incorporate materials science, the approach is mostly limited to the treatment of topics involving metals. The coverage of ceramics and polymers is very superficial, dealing mainly with composition without considering the special properties of non-crystalline materials or explanations of events on a microscopic scale. The science of composites is not introduced, even though the vast majority of direct restorative materials may be approached in terms of this material. Dental materials technology is also presented in a nonspecific way, and, as such, the title belies the content of the book. While individual applications are identified, the products are not named nor are their properties presented. For this reason, this is a relatively poor reference book for the specific characteristics of dental materials for selection. The treatment focuses primarily on mechanical properties and disregards most of the recent information on biological properties such as toxicity or biocompatability. The limited information on the toxicity of mercury is out of date. Although, for this edition, the author has attempted to update the materials, there are only about two references to each chapter and many of these are between 15 and 20 years old. The text reads relatively easily, is well organized within individual
chapters and, for the most part, is supported by illustrations. However, these are not sophisticated and include little, or no, artwork. The line drawings are oversimplified and quite often either not to scale or incomplete in their presentation, causing some confusion for the student to resolve. Each chapter would be considerably enhanced if more clinical photographs and many more SEM photographs had been used. In this new edition, most current dental materials applications are at least introduced, although obviously it is impossible to go into great detail. Topics which are noticeably missing are CAD/CAM ceramic material, implants and conservative resin restorations. It is difficult to understand why the author remains so loyal to silicate cements as to continue to retain them. Information on aesthetic restorative materials has been updated but still lacks sophistication, technical correctness and scientific analysis. Composites are treated relatively superficially. A great wealth of recent clinical information on performance is ignored and this is one example of an area that will be greatly enhanced by introducing specific products into the presentation. In summary, this text could be used as an introduction to dental materials, but the limited application details, absence of any discussion of products and scanty references means it would have to be supplemented with other information or a dental materials technology textbook. S. C. Bayne
Outline of Periodontics. J. D. Manson and B. M. Eley. Pp. 276. 1989. Wright (an imprint of Butterworth-Heinemann), Oxford. Softback, f 17.95. This book is aimed at both dental students and dental practitioners and covers most of the theoretical knowledge that both should require. It is particularly important for the latter when the subject has become a topic for both newspapers and other media. The book is more interesting than many other dental practitioner handbooks since the authors approach the theoretical aspects more deeply than normal. Chapters of special interest are those on the ‘Oral environment and health and disease’, ‘Host-parasite interaction’, ‘The chemotherapeutic approach to periodontal treatment’ and ‘Management of bone defects and furcation involvement’. The book is written in a clear manner, yet is very easy to read. The diagrams are always instructive but it would have been helpful if the clinical pictures had been in colour rather than monochrome. There are sufficient references at the end of most of the chapters for those who wish to pursue the topics further. This is a book to be recommended not only to dental students but also to those practitioners who wish to keep abreast of the most recent developments in periodontology. J. Hakansson
19: 323-324
323
Book Reviews Section
Editor: P. N. Hirschmann
Atlas of Porcelain Restorations. H. Denisen, C. Mangano, V. Nava and M. S. Sangalli. 94. 1990. Padua, Piccin Nuova. Hardback, f30.00.
Pp.
Although this book is described as an atlas which demonstrates in detail both clinical and laboratory procedures related to a range of porcelain restorations, the contents are somewhat more limited than appears at first sight. There are 10 chapters with a total of 204 illustrations in 94 pages; 27 references are cited. The translation from the original Italian is not free of error. The book opens with a general introduction to porcelain restorations which covers some basic dental materials science related to ceramics without discussing the fundamental properties of the structure and chemistry of aluminous and non-aluminous porcelains. Presumably, the glass described as having a silicon structure means an Si Li Ca structure. Several shortcomings in conventional restorations are highlighted, and the use of an adhesive composite system for bonding porcelains to tooth tissue is advocated. The clinical procedures for porcelain veneers is described next, generously illustrated. Although removal of 0.5 mm of labial enamel is described, the clinical example suggests that more radical reduction has been carried out. Use of a light-cured composite resin luting agent is recommended, but reference to dualactivated cements is made neither here nor, and more significantly, later in dealing with porcelain partial crowns. Nor do the authors refer to any form of occlusal evaluation following cementation, a procedure which may well be taxing and very time consuming. Figures 1061 14 in Chapter 6 illustrate the full mouth rehabilitation of a patient with amelogenesis imperfecta, without any reference to initial occlusal evaluation or details of the technical work required. Despite the copious illustrations, the text is too superficial with too many omissions for this book to be widely recommended. A. J. E. Qualtrough
Wax-Up for Functional Occlusion. N. P. Lang, A. Gipp and A. Grendelmeier. Pp. 27. 1989. New Malden, Quintessence. Spiral, f 14.00. This is an extremely well presented booklet which is in keeping with the usual high standards of Quintessence. There are 27 pages and 28 illustrations that make up the two chapters and four-page glossary of specialized terminology. The first chapter discusses the principles of occlusion and the merits of point centric and freedom in centric as gnathological occlusal concepts. It is made clear that whereas the former relies on tripodization to stabilize every occlusal contact, the latter has a flat region built up between retruded contact position and maximal intercuspation to provide a slide free of interferences between the positions. It is a proven therapeutic occlusal concept which enables the temporomandibular joint and @ 1991 Butterworth-Heinemann 0300-5712/91/050323-02
Ltd.
its associated muscles to remain in harmony. Having established the merits of freedom in centric, the second chapter is a step-by-step guide to waxing up in long centric utilizing the P. K. Thomas technique and based on a tooth-to-two teeth relation with marginal ridge and fossa contacts, although it is acknowledged that this is not always possible. This booklet is probably aimed at the dental student and technician but all dentists interested in occlusion and restorative techniques would benefit from reading it. At f 14.00 it represents reasonably good value. W. G. Jenkins
Preparation of the Periodontium for Restorative Dentistry. Edited by P. A. Fugazzotto. Pp. 1 14. 1990. lshiyaku Euro America (distributors Gazelle Book Services, Lancaster). Hardback, f58.75. A picture atlas can provide a useful method for reinforcing, and possibly developing, new clinical skills. It should comprise clear photographs and diagrams with concise explanations of established but up-to-date techniques. The aim of this book, which is the second in a series which will describe clinical techniques from various dental disciplines, is to illustrate periodontal surgical methods which should be carried out before the provision of crowns and bridges. This book is principally a practical manual and it is therefore acceptable that the legends and brief introductions to each section are not bristling with references. The layout is clear and the order is generally logical, although the various treatment cases tend to merge and emphasis is not placed on the more common clinical situations. Unfortunately, some of the photographs are repetitive and others do not satisfactorily illustrate the points made in the legends. The diagrams are not of the same clarity as the photographs and some have been printed upside down, Occasionally, radiographs are used to illustrate clinical cases although many are of poor quality. Traditional surgical procedures are described, showing bony resective techniques and methods to gain attached gingiva. There is an adequate explanation of the minimum biological width in order that periodontal health can be maintained. Excellent results are shown after apical positioning of mucogingival flaps whether to lengthen crowns to improve retention of restorations or to help maintain gingival health when there are subgingival restorative or fractured tooth margins. Radical approaches are adopted both in extractions to avoid potentially compromising adjacent teeth and odontoplasty to eliminate incipient furcation involvement and attain an ideal tooth emergence profile. Emphasis tends to be placed on surgical techniques at the expense of the diagnostic, treatment and prognostic considerations in combined periodontal/restorative treatment. Additional information would have been helpful on the role of root resection when there is furcation involvement and on the
324
J. Dent. 1991; 19: No. 5
methods to augment alveolar ridges following the extraction of anterior teeth. The completed restorative treatment of follow-up results are often not shown, possibly because many of the patients had been referred for periodontal treatment alone. Regrettably, the importance of meticulous plaque control is not emphasized. These reservations, together with the expense, mean this book will have only a limited audience. J. R. Radford
Applied Dental Materials. J. F. McCabe. Pp. 199. 1990. Oxford. Softback, f 19.95.
Blackwell Scientific,
This is the seventh edition of the now classic textbook covering both dental materials and dental materials science. The author is to be commended for attempting to include an extensive material science perspective into the discussion of the former. This is always difficult and all too often becomes simply a discussion of techniques or procedures. The book is organized into two introductory chapters, 1 1 focusing on the materials used by dental technicians, six on those used in indirect procedures and the final 10 in direct restorative dentistry. While the author has specifically chosen this structure so as to provide information for dentists, technicians, and perhaps other dental auxiliaries, this results in less than half the book focusing on the materials encountered in dental practice. Many of the 29 chapters are very short and could be logically combined: it is not clear why there are four on dental cements. Despite a valiant attempt to incorporate materials science, the approach is mostly limited to the treatment of topics involving metals. The coverage of ceramics and polymers is very superficial, dealing mainly with composition without considering the special properties of non-crystalline materials or explanations of events on a microscopic scale. The science of composites is not introduced, even though the vast majority of direct restorative materials may be approached in terms of this material. Dental materials technology is also presented in a nonspecific way, and, as such, the title belies the content of the book. While individual applications are identified, the products are not named nor are their properties presented. For this reason, this is a relatively poor reference book for the specific characteristics of dental materials for selection. The treatment focuses primarily on mechanical properties and disregards most of the recent information on biological properties such as toxicity or biocompatability. The limited information on the toxicity of mercury is out of date. Although, for this edition, the author has attempted to update the materials, there are only about two references to each chapter and many of these are between 15 and 20 years old. The text reads relatively easily, is well organized within individual
chapters and, for the most part, is supported by illustrations. However, these are not sophisticated and include little, or no, artwork. The line drawings are oversimplified and quite often either not to scale or incomplete in their presentation, causing some confusion for the student to resolve. Each chapter would be considerably enhanced if more clinical photographs and many more SEM photographs had been used. In this new edition, most current dental materials applications are at least introduced, although obviously it is impossible to go into great detail. Topics which are noticeably missing are CAD/CAM ceramic material, implants and conservative resin restorations. It is difficult to understand why the author remains so loyal to silicate cements as to continue to retain them. Information on aesthetic restorative materials has been updated but still lacks sophistication, technical correctness and scientific analysis. Composites are treated relatively superficially. A great wealth of recent clinical information on performance is ignored and this is one example of an area that will be greatly enhanced by introducing specific products into the presentation. In summary, this text could be used as an introduction to dental materials, but the limited application details, absence of any discussion of products and scanty references means it would have to be supplemented with other information or a dental materials technology textbook. S. C. Bayne
Outline of Periodontics. J. D. Manson and B. M. Eley. Pp. 276. 1989. Wright (an imprint of Butterworth-Heinemann), Oxford. Softback, f 17.95. This book is aimed at both dental students and dental practitioners and covers most of the theoretical knowledge that both should require. It is particularly important for the latter when the subject has become a topic for both newspapers and other media. The book is more interesting than many other dental practitioner handbooks since the authors approach the theoretical aspects more deeply than normal. Chapters of special interest are those on the ‘Oral environment and health and disease’, ‘Host-parasite interaction’, ‘The chemotherapeutic approach to periodontal treatment’ and ‘Management of bone defects and furcation involvement’. The book is written in a clear manner, yet is very easy to read. The diagrams are always instructive but it would have been helpful if the clinical pictures had been in colour rather than monochrome. There are sufficient references at the end of most of the chapters for those who wish to pursue the topics further. This is a book to be recommended not only to dental students but also to those practitioners who wish to keep abreast of the most recent developments in periodontology. J. Hakansson