Facial growth, third edition

Facial growth, third edition

DEPARTMENT OF REVIEWS AND ABSTRACTS Edited by Alex Jacobson, DMD, MS, MDS, PhD Birmingham, Ala. All inquiries regarding information on reviews and ab...

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DEPARTMENT OF REVIEWS AND ABSTRACTS Edited by Alex Jacobson, DMD, MS, MDS, PhD Birmingham, Ala.

All inquiries regarding information on reviews and abstracts should be directed to the respective authors. Articles or books for review in this department should be addressed to Dr. Alex Jacobson, University of Alabama School of Dentistry, University Station/Birmingham, Alabama 35294.

Ending Head and Neck Pain: The TMJ Connection Randall C. Moles Racine, Wis., CGM Publications, $12.95, soft cover, 218 pages

The greatest cause of absenteeism in the United States, according to the Department of Labor, is headache pain. An estimated 30 to 40 million people in this country suffer from regular headaches, resulting in more than 150 million work days lost each year. The writer reports that eight out of ten patients who come into his office seeking help from chronic head and neck pain, have had previous diagnoses of migraine, sinus, or tension headache but, in fact, have problems that, all or in part, are related to malfunction of their jaws or surrounding structures (TM dysfunction). The book begins by describing normal and abnormal joint anatomy and function, and the various factors that cause people to experience pain. This is followed by sections explaining the examination procedure and the reasons that specific records are taken. Splint therapy and the reasons for the different types of splint are explained. The next section outlines various arthritic problems that joints are heir to, including the TM joint. Since TM dysfunction is a medical problem with a dental component, many of the therapies advocated are the ones used by physicians in treating medical problems; these include physical therapy, heat therapy, diathermy, ultrasound, electrogalvanic stimulation, massage, manipulation, and stress management. The next section deals with rehabilitating the patient after elimination of the causative factors of the pain, with lifestyle modification possibly being the key. Various joint surgery procedures are described but are recommended only as a last resort. The concluding chapters deal with preventive measures, such as healthy diet, avoidance of nicotine, caffeine, and excessive sugar intake, and correct posture. A question-and-answer section is provided at the end of the book.

The paperback volume is not a medical text, but is intended as an information resource for lay persons seeking relief from head and neck pain. The author wisely inserts a bold disclaimer at the beginning of the book, stating that its purpose is not to render medical advice but to provide information to those seeking relief from head and neck pain. The recommendation is that if medical advice is required, the services of a competent health professional should be sought. The book, illustrated with a few line drawings, is informative, current, void of dogma, and could be of significant value in patient education. Alex Jacobson

Facial Growth, Third Edition D.H. Enlow Philadelphia: WB Saunders, 1990.

The author and 10 contributors have managed to accomplish the almost impossible-condensing, in digestible form, the vast subject of growth and development into a single volume. The book is intended to be a primer on growth and development of the bones of the face and cranium and the overall process of postnatal facial development. No claim is made as to its being a comprehensive account of the enormous range of subjects in all areas of facial growth. Neither is it claimed to present an exhaustive review and analysis of research literature, a compendium of statistical growth data, or a complete synopsis on cephalometrics. The book is unique in that many chapters have two parts. The first part is an abridged version of the chapter, which serves to introduce the particular subject to the first-time reader, and thus is ideally suited to undergraduate instruction. The second part of the two-part chapters presents a more in-depth account and elaboration of the same material and consequently is suited to practitioners or students in advanced professional programs. In addition, the list of more than 1500 ref-

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Reviews and abstracts

erences toward the end of the volume serves as a tremendous source of supplemental reading. The original volume was written by Enlow, with contributions by Robert E. Moyers and William W. Merow. The updated version includes eight additional contributors known for their expertise in particular subjects. The additional sections include introductions to TMJ, birth defects, facial heredity, adult facial growth, growth control, biomechanics, and general body growth. The third printing is only 70 pages longer than the second edition. Rather than simply add chapters that would tend to make the book unwieldy, the principal author has trimmed from the book material not being used in his own graduate and undergraduate programs and tightened up the remainder of the text. The chapter on cephalometrics in the original version was written by Dr. Merow. B. Holly Broadbent, Jr. coauthored the chapter in the third edition. Since Dr. Moyers, one of the original contributors to the book, has written extensively on the subject of cephalometrics, and particularly on the inappropriateness of conventional cephalometrics, one is left wondering why he was not asked to provide or add another dimension to this particular section of the volume. The first edition of the book remains a classic and was a great contribution to the stockpile of knowledge on the subject of craniofacial growth. Because of the current demand for a greater understanding of the mechanisms of growth and development in both the medical and dental professions, the updated version of the book should have similar wide appeal to students in the firstdegree and advanced programs in these disciplines. Alex Jacobson

matognathic system. The claim that it is often easier to write a full-feature novel than a short story appears to be valid. The authors have demonstrated an ability to condense material from a vast field into the extensively referenced beginning chapters. The latter half of the volume deals with craniomandibular orthopedics in growing and nongrowing patients. In the treatment of craniomandibular asymmetries, a clear distinction is drawn between asymmetries of the bones and those caused by displacement of the mandible in intercuspal position. The therapeutic objectives throughout the book are to treat the anatomic and functional alteration of the system resulting from various structural insults and, if possible, to achieve full morphologic and functional restoration. The book is adequately illustrated with black and white photographs and drawings. Whereas one may not be in total agreement with every aspect of its content, the book does, however, contain a wealth of clinically useful information for students, general practitioners, and specialists in orthodontics and occlusion. A good investment. Alex Jacobson

Thesis abstracts The Potential Application of Fiber-Reinforced Composite as an Orthodontic Wire: Biomechanical Considerations Douglas A. Rollins Farmington: University of Connecticut, 1989

Craniomandibular and TMJ Orthopedics Franco Mangini and Wihelmine Schmidt Chicago: Quintessence Publishing, 206 pages, 491 illustrations, $54.00

The book, written by a husband-and-wife teamone an orthodontist and the other a specialist in occlusion-evolves around the concept of occlusion as a system comprising stomatognathic variables, namely, the temporomandibular joint, masticatory musculature, jaws and associated periodontal structures, and the pertinent parts of the central and peripheral nervous system, rather than simply being confined to interdigitating teeth. The first three chapters deal with the principles and monitoring of craniofacial growth and articular remodeling in the adult. This is followed by a review of the neurophysiology and pathophysiology of the sto-

To find more efficient orthodontic arch wires, we studied the properties of a new arch wire material, namely fiber-reinforced composite (FRC). FRC is a macroscopic combination of S2 glass fiber and thermoplastic matrix material. These two materials are formed into one unit by means of a coupling agent to chemically bridge the two components together. The wire shows great potential as a tooth-colored orthodontic wire that would be in great demand in today's esthetically minded practice of clinical orthodontics. By means of a two-bracket step-geometry orthodontic wire testing apparatus (with 0.022-inch slots), eight separate lots of 0.019 x 0.024-inch FRC wire (varying among three different matrix types and 47% to 63% glass fiber in their cross section) were tested for the following: force-deflection ratio (F / D rate),