ABSTRACT

Objectives

To present a clinical description of the team's treatment techniques.

Materials and Methods

In Part 1, 30 patients underwent segmental maxillary orthodontics, multisegment Le Fort I, and bilateral sagittal osteotomies of the mandible. Part 1 reported excellent occlusal stability at a mean follow-up of 49.43 months (range, 36–92 months). Cases presented in Part 2 were selected based on availability of excellent technique photographs. The same techniques described in Part 2 cases were used on all Part 1 patients.

Results

The coordination of arch widths and forms, overbite, overjet, and maxillary curve of Spee corrections were stable using the team protocols for orthodontic and surgical treatment.

Conclusions

In the study group, long-term three-dimensionally stable occlusal results were achieved. To duplicate these results, specific orthodontic preparation, intraoperative surgical steps, and postsurgical steps must be carefully planned and executed. These steps are described in this article, Part 2.

ABSTRACT

Objectives

To evaluate orthodontists' perceived impacts on their practices as a result of general practitioners (GPs) and direct-to-consumer (DTC) orthodontic care providers and the adaptational changes implemented in the past 10 years.

Materials and Methods

An electronic survey was administered to 270 orthodontists in Canada and the United States to determine demographic background, perception of perceived impact, and specific changes implemented to improve practice competitiveness.

Results

More experienced orthodontists (P = .0001) and males (P = .027) were more likely to indicate a perceived impact from GP orthodontics. American orthodontists were significantly more likely than Canadian orthodontists to perceive an impact from DTC providers (P = .017). There was a positive association with orthodontists' years of experience and having implemented adaptational changes to their practice for a period greater than 10 years across multiple categories. Female orthodontists were more likely to have implemented adaptational changes for a period of less than 10 years across multiple categories.

Conclusions

The perceived impact of GPs providing orthodontic care was greater than that of DTC providers. American orthodontists were significantly more likely to perceive an impact from DTC providers. Orthodontists have experienced a reduction in referrals from GPs and an increase in referred case difficulty. Less experienced and female orthodontists have made the most adaptive changes to their practices in the past 10 years.

ABSTRACT

Objectives

To investigate and compare the amount and rate of space closure and tooth tipping during orthodontic space closure toward a recent vs healed first premolar extraction site.

Materials and Methods

The mandibular arches of 23 patients were included. Treatment plans included lower first premolar extractions. After reaching 0.019 × 0.025-inch stainless-steel archwires (SSAW), patients were subdivided into two groups (Group 1: space closure was carried out toward a healed first premolar extraction space and Group 2: space closure was carried out immediately after first premolar extraction). Elastomeric power chain from second molar to second molar was used to close lower extraction spaces. The following time points were defined: T1: just before space closure; T2–T4: 1–3 months after initial space closure. Records consisted of dental study models. The amount and rate of extraction space closure were evaluated at each time point.

Results

In Group 1 (healed socket), a total amount of 1.98 mm (coronally) and 1.75 mm (gingivally) of space closure was achieved. The rate of space closure was 0.66 mm/month coronally and 0.58 mm/month gingivally. In Group 2 (recent socket), the total amount of space closure was 3.02 mm coronally and 2.68 mm gingivally. The rate of space closure was 1.01 mm/month coronally and 0.89 mm/month gingivally. Differences between the two groups were significant (P < .01). Tipping of adjacent teeth during space closure was similar in both groups (P > .05).

Conclusions

In the lower arch, the amount and rate of space closure toward a recent extraction site were higher than that toward a healed extraction socket with similar tipping of teeth in both groups.

This listing of academic opportunities is provided as a free service to the profession and the community.

MASSACHUSETTS

Boston University Henry M. Goldman School of Dental Medicine

Department of Orthodontics & Dentofacial Orthopedics

635 Albany Street, Suite 754

Boston, MA 02118

Email applications to: willa@bu.edu

Rank: Clinical Assistant/Clinical Associate Professor

Requirements: DMD/DDS degree or equivalent. Certificate of training in Orthodontics & Dentofacial Orthopedics from an accredited postodoctoral program. 1-3 years teaching experience in academic setting. Eligibility for licensure in the Commonwealth of MA.

Must submit: CV, letter of interest, statement of career goals and academic interest, and leadership