Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1973. Orthodontics. / Bibliography included. / In a departure from the notion that the Begg appliance does not disturb the patterns of typical growth changes, 21 untreated and 20 "Begg-treated” Class II, division 1 individuals were analyzed and compared through the use of serial, longitudinal cephalometric measurements. The age range of 10 to 14 years presumably includes a parapubertal growth rate acceleration for each sample. Various angular and linear measurements were determined. In addition, intragroup treatment behavior was observed in the Begg sample. Among the untreated controls, the chin point grew forward with age and thereby reduced the facial convexity. The maxilla (SA) was found to be relatively stable. ANB closure approached 1.0 degree both for this group as well as in the treated sample. However, the closure in the Begg patients appeared to result solely from point A retraction or SNA reduction since the chin points and SNB showed no forward migration in the presence of therapy. The speculation occurs, then, that had not the chin been so restrained, there would have been more profile fattening and apical base alignment. Regarding the spatial position of the chin, another observation was that "counter clockwise" rotation of the mandibular plane presented in the control group. At best, the mandibular plane showed no change for overall treatment, which by comparison to the controls effectively designated disturbance of the growth pattern. Correlations between pogonion, mandibular plane and SNB were quite significant in both groups. Finally, it was determined that intra-group Begg treatment changes expressed tendencies generally found in the literature. These changes, too, were discussed and evaluated against the control sample. Interestingly enough, for example, the upper first molar protracted no further mesially in Begg treatment than it would have migrated if left undisturbed.

Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, 1972. (Orthodontics) / Bibliography included. / Thirty-six cases, six months to two years in retention were examined for antero-posterior changes during and after active treatment. All cases except one were Glass II. Pretreatment, post-treatment and two sets of retention cephalograms, panorexes and models were evaluated and the data examined to determine the association of certain skeletal and dental parameters to overjet. During treatment the skeletal changes (SNA, SNB, ANB) were small, while the dental changes (maxillary incisor to NA, mandibular incisor to NB and the interincisal angles) were large. Skeletal changes appeared to be more stable in retention than dental changes. Overjet appeared unrelated to the degree of intercuspation, a long postulated theory regarding post-treatment stability.

Thesis (M.S.)--University of Michigan, 1987. / eContent provider-neutral record in process. Description based on print version record.

Thesis (doctoral)--Göttingen, 1933.

Thesis (M.S. in oral sciences)--University of Illinois at Chicago, 1998. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--University of Michigan, 1997. / Includes bibliographical references.

Thesis--University of Western Ontario, 1999. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M. Sc.)--University of Manitoba, 1995. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis--University of Western Ontario, 1999. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (Ph. D.)--University of Hong Kong, 1999. / Includes bibliographical references.