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Dentoalveolar variations in bimaxillary protrusion
Reviews and abstracts
American Journal of Orthodontics and Dentofacial Orthopedics Volume 103, No. 5
this measurement technique. Significant bwreases and decreases in PBF occurred both intraoperative~ and postoperatively in several surgical subjects in association with both surgical procedures. However, at no time was PBF found to be absent in any subject.
This study was supported by the author, and the Orthodontic, Endodontic and Oral and Maxillofacial Surgery Departments of Columbia University, School of Dental and Oral Surgery.
Dentoalveolar variations in bimaxillary protrusion, v. Pardi, DDS, New York; Division of Orthodontics, School of Dental and Oral Surge~ Columbia Universi~ 1992
The orthodontic literature is littered with the diagnosis of "Bimaxillary Protrusion" referring to the procumbency ~f the maxillary and mandibular incisors, often without any reference to the type of incisor protrusion involved, tO the involvement of the rest of the dentition or dentoalveolar bases, or to the facial features which
489
Case and others after him have held to be characteristic for this malocclusion. The object of this investigation is to define the various subtypes of Bimaxillary Protrusion. Fifteen untreated patients' records were selected based on characteristic facial features consisting of protruding mouths, lip incompetency and receding chins. A modified Sassouni analysis was performed on a tracing of each patient's cephalographic radiograph. Evaluation of lip position and form was performed with a soft tissue analysis. Three subtypes of protrusion of the maxillary dentition were found: (1) coronal protrusion (excessive labial inclination) of the upper incisors only, (2) bodily protrusion of the maxillary posterior dentoalveolar segments with concomitant bodily protrusion of the upper incisor, but without coronal protrusion of the upper incisor, and (3) bodily protrusion of the maxillary posterior dentoalveolar segments with components of both coronal and bodily protrusion of the upper incisor. Various commonly used descriptive terms for this malocclusion are discussed. The efforts here are directed at a more precise diagnosis that describes the problem, its location, and the structures involved, including the soft tissue irrezularities.
BOUND VOLUMES AVAILABLE TO SUBSCRIBERS Bound volumes of the AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIALORTHOPEDICS are available to subscribers (only) for the 1993 issues from the Publisher, at a cost of $58.50 ($73.60 Canada and $69.50 international) for Vol. 103 (January-June) and Vol. 104 (July-December). Shipping charges are included. Each bound volume contains a subject and author index and all advertising is removed. Copies are shipped within 60 days after publication of the last issue in the volume. The binding is durable buckram with the journal name, volume number, and year stamped in gold on the spine. Payment must acconlpany all orders. Contact Mosby, Subscription Services, 11830 Westline Industrial Dr., St. Louis, MO 63146-3318, USA; telephone (314)453-4351 or (800)325-4177. Subscriptions must be in force to qualify. Bound volumes are not available in place of a regular Journal subscription.
American Journal of Orthodontics and Dentofacial Orthopedics Volume 103, No. 5
this measurement technique. Significant bwreases and decreases in PBF occurred both intraoperative~ and postoperatively in several surgical subjects in association with both surgical procedures. However, at no time was PBF found to be absent in any subject.
This study was supported by the author, and the Orthodontic, Endodontic and Oral and Maxillofacial Surgery Departments of Columbia University, School of Dental and Oral Surgery.
Dentoalveolar variations in bimaxillary protrusion, v. Pardi, DDS, New York; Division of Orthodontics, School of Dental and Oral Surge~ Columbia Universi~ 1992
The orthodontic literature is littered with the diagnosis of "Bimaxillary Protrusion" referring to the procumbency ~f the maxillary and mandibular incisors, often without any reference to the type of incisor protrusion involved, tO the involvement of the rest of the dentition or dentoalveolar bases, or to the facial features which
489
Case and others after him have held to be characteristic for this malocclusion. The object of this investigation is to define the various subtypes of Bimaxillary Protrusion. Fifteen untreated patients' records were selected based on characteristic facial features consisting of protruding mouths, lip incompetency and receding chins. A modified Sassouni analysis was performed on a tracing of each patient's cephalographic radiograph. Evaluation of lip position and form was performed with a soft tissue analysis. Three subtypes of protrusion of the maxillary dentition were found: (1) coronal protrusion (excessive labial inclination) of the upper incisors only, (2) bodily protrusion of the maxillary posterior dentoalveolar segments with concomitant bodily protrusion of the upper incisor, but without coronal protrusion of the upper incisor, and (3) bodily protrusion of the maxillary posterior dentoalveolar segments with components of both coronal and bodily protrusion of the upper incisor. Various commonly used descriptive terms for this malocclusion are discussed. The efforts here are directed at a more precise diagnosis that describes the problem, its location, and the structures involved, including the soft tissue irrezularities.
BOUND VOLUMES AVAILABLE TO SUBSCRIBERS Bound volumes of the AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIALORTHOPEDICS are available to subscribers (only) for the 1993 issues from the Publisher, at a cost of $58.50 ($73.60 Canada and $69.50 international) for Vol. 103 (January-June) and Vol. 104 (July-December). Shipping charges are included. Each bound volume contains a subject and author index and all advertising is removed. Copies are shipped within 60 days after publication of the last issue in the volume. The binding is durable buckram with the journal name, volume number, and year stamped in gold on the spine. Payment must acconlpany all orders. Contact Mosby, Subscription Services, 11830 Westline Industrial Dr., St. Louis, MO 63146-3318, USA; telephone (314)453-4351 or (800)325-4177. Subscriptions must be in force to qualify. Bound volumes are not available in place of a regular Journal subscription.