Occlusal Vertical Dimension: Alteration Concerns
You will receive 1 unit(s) of continuing education credit upon successful completion of this course. The registration fee is only $41.00
This course provides a detailed discussion of alteration of OVD, proper methods and possible benefits
Upon completion of this course, participants should be able to do the following:
- Describe how vertical relationships change during the growth process.
- Determine that changes in occlusal vertical dimension are stable with certain precautions.
- Understand that new paradigms which represent a logical clinical assessment will be provided to obtain the most desired treatment outcome.
This course exposes common myths supported by restorative dentists that serve to limit our potential for achieving more favorable results. The need to alter occlusal vertical dimension (OVD) signifies a number of concerns that include: bite force measurements, rest vertical dimension, effect on temporomandibular joint loading, effect on tooth loading and neuromuscular adaptation/stability. There appears to be sufficient scientific support to conclude that alteration of OVD can provide a biologically compatible adjunct to treatment. These alterations can improve dentofacial esthetics, create improved visual proportions in facial height and provide an important treatment modality for force management of the masticatory system.
- Thompson JR. The rest position of the mandible and its significance to dental science. J Am Dent Assoc. 1946; 33:151-180.
- Tallgren A. Changes in adult face height due to aging, wear and loss of teeth and prosthetic treatment. Acta Odontol Scand Suppl. 1957; 24:1-24.
- Ramfjord SP, Ash MM. Occlusion. Philadelphia, WB Saunders, 1983.
- Bjork A. Facial growth in man studied with the aid of metallic implants. Acta Odontol Scand. 1955; 13:9-34.
- McNamara JA. An experimental study of increased vertical dimension in the growing face. Am J Orthod. 1977; 71:382- 395.
- Stuart JD. Habits affecting dental and maxillofacial growth and development. Dent Clin North Am. 1995; 39:851-860.
- Linder-Aronson S. Adenoids, their effect on mode of breathing and nasal airflow and their relationship to characteristics of the facial skeleton and the dentition. Acta Otolaryngol Suppl. 1970; 265:1-32.
- Boos RH. Intermaxillary relation established by biting power. J Am Dent Assoc. 1940; 27:1193-1199.
- Boucher LJ. Principles, concepts, and practices in prosthodontics. J Prosthet Dent. 1989; 61:88-109.
- Gibbs CH, Mahan PE, Mauderli A, et al. Limits of human bite strength. J Prosthet Dent. 1986; 56:226-229.
- Dahlstrom L, Haraldson T, Janson ST. Comparative electromyographic study of bite plates and stabilization splints. Scand J Den Rest. 1985; 93(3):262-268.
- Manns A, Miralles R, Palazzi C. EMG, bite force, and elongation of masseter muscle under isometric voluntary contractions and nariations of vertical dimension. J Prosthet Dent. 1979; 42:674-679.
- Prombonas A, Vlissidis D, Molyvdas P. The effect of altering the vertical dimension of occlusion on biting force. J Prosthet Dent. 1994; 71:139-143.
- Wyke BD. Neuromuscular mechanisms influencing mandibular posture: a neurologist"s review of current concepts. J Dent. 1974; 2:111-120.
- Olsen ES. A radiographic study of variations in the physiologic rest position of the mandible in seventy edentulous individuals. J Dent Res. 1951; 30:517- 525.
- Atwood DA. A cephalometric study of rest position of the mandible, part I. J Prosthet Dent. 1956; 6:504-519.
- Atwood DA. A cephalometric study of rest position of the mandible, part II. J Prosthet Dent. 1957; 7:544-552.
- Atwood DA. A cephalometric study of rest position of the mandible, part III. J Prosthet Dent. 1958; 8:698-708.
- Tallgren A. The reduction in face height of edentulous and partially edentulous individuals during long-term denture wear: a longitudinal roentgenographic cephalometric study. Acta Odontol Scand. 1966; 24:195-239,
- Wands D. A longitudinal study. Masters Thesis, University of Washington, 1972.
- Hellsing G. Functional adaptation to changes in vertical dimension. J Prosthet Dent. 1984; 52:867-870.
- Carlsson GE, Ingervall B, Kocah G. Effect of increasing vertical dimension on the masticatory system in subjects with natural teeth. J Prosthet Dent. 1979; 41:284-289.
- Manns A, Miralles R, Guerrero F. The changes in electrical activity of the postural muscles of the mandible upon varying the vertical dimension. J Prosthet Dent. 1981; 45:438-445.
- Mongini FJ. Anatomic and clinical evaluation of the relationship between the temporomandibular joint and occlusion. J Prosthet Dent. 1977; 38:539-551.
- Moffet BC, Johnson LC, McCabe JB, et al. Articular remodeling on adult human temporomandibular joint. Am J Anat. 1964; 115:119-142.
- Hannan AG, Wood NW. Relationships between size and spatial morphology of human masseter and medial pterygoid muscles, the craniofacial skeleton and jaw biomechanics. Am J Phys Anthropol. 1989; 80(4): 429-445.
- Dawson PE: Evaluation, Diagnosis, and Treatment of Occlusal Problems, ed 2. St. Louis, CV Mosby Co, 1989.
- Dawson PE. Optimum TMJ condylar position in clinical practice. Int J Periodontics Restorative Dent. 1985; 3:11-31.
- Gelb H. The optimum temporomandibular joint condyle position in clinical practice. Int J Periodontics Restorative Dent. 1985; 4:35-61
- McNeil C. The optimum temporomandibular joint condyle position in clinical practice. Int J Periodontics Restorative Dent. 1985; 6:53-76.
- Williams WN. The effect of periodontal bone loss on bite force discrimination. J Periodontol. 1986; 58:236-239.
- Keough B. Occlusal considerations in periodontal prosthetics. Int J Periodontics Restorative Dent. 1992; 12:359-371.
- Ramfjord SP, Blankenship JR Increased occlusal vertical dimension in adult monkeys. J Prosthet Dent. 1981; 45:74-83.
- Goldspink G. The Adaptation of Muscle to a New Functional Length. England, John Wright and Sons Ltd, 1976.
- Darr KC, Schultz E. Exercise-induced satellite-cell activation in growing and mature skeletal muscle. J Appl Physiol. 1987; 63:1816-1821.
- Winchester PK, et a.: Satellite-cell activation in the stretch-enlarged anterior latissimus dorsi muscle of the adult quail. Am J Physiol. 1991; 260:C206-C212.
- Rugh J, Robins W. Oral Habit Disorders: Behavioral Aspects in Dentistry. New York, Appleton-Century Crofts, 1981.
- Witt DW, Kokich VG. Long-term stability of increasing lower anterior facial height with mandibular sagittal osteotomies. Submitted for publication: Angle Orthod.
- Denison TF, Kokich VG, Shapiro PA. Stability of maxillary surgery in open bite versus non-open bite malocclusions. Angle Orthod. 1990; 59:5-10.
- Dahl BC, Krogstad O. Long-term observations of an increased occlusal face height obtained by a combined orthodontic/prosthetic approach. J Oral Rehabil. 1985; 12:173-176.
American Dental Association is an ADA CERP Recognized Provider.
ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providers of continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by boards of dentistry.