Three-D imaging of dental alveolar bone change after fixed orthodontic treatment in patients with periodontitis.

Objectives: The objective of this study was to radiographically quantify bone height and bone density in patients with periodontitis after fixed orthodontic treatment using cone beam computed tomography (CBCT).

Materials And Methods: A total of 81 patients including 40 patients with chronic periodontitis (group 1) and 41 patients with normal periodontal tissues (group 2) were selected. CBCT scanning for anterior teeth were taken before and after orthodontic treatment.

[Measurement of alveolar bone thickness of adult skeletal Class III patients in mandibular anterior region].

Purpose: To describe alveolar bone thickness in mandibular anterior region of skeletal Class III malocclusion with the help of Cone-beam CT.

Methods: The subjects were selected from consecutive adult patients seeking orthodontic treatment in Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University School of Medicine from January 2008 to March 2011, which included 64 patients diagnosed to be skeletal Class I malocclusion (Class I group) and 66 patients diagnosed to be skeletal Class III malocclusion (Class III group). Both Class I and Class III groups were divided into 3 divisions respectively according to different vertical facial types.

Bone grafting, corticotomy, and orthodontics: treatment of cleft alveolus in a chinese cohort.

Objective : A multimodal therapy was applied to solve a set of related problems including collapse of the posterior segment, high level gingival margin of canine, and resorption of grafted bone in a cohort of Chinese youngsters with cleft lip and palate. This study aimed to evaluate the benefits of this treatment procedure. Methods : Thirty patients with unilateral cleft lip and palate were included in this prospective study.

[Clinical study of ramus implant anchorage for mandibular arch distalization].

Purpose: To evaluate the efficiency of ramus implant anchorage for mandibular arch distalization, and determine the feature of tooth movement.

Methods: Six patients were selected to distalize mandibular arch with ramus implant anchorage. Position changes of mandibular first molars and incisors were measured in sagittal and vertical direction to evaluate the amount of molar and incisor distalization and character of tooth movement.

[Exploration on the sliding mechanism of implant anchorage assisted self-ligating appliance].

Purpose: To investigate non-extraction treatment of borderline cases through analysis of cases treated by maxillary implant anchorage assisted self-ligating appliance.

Methods: Twenty adult patients with moderate-crowding malocclusion were reviewed. The patients were divided into 2 groups.

Mia-assisted orthodontic treatment for dental malocclusion secondary to periodontal disease.

In contemporary dental care, an increasing number of adult patients with periodontal disease are seeking orthodontic treatment. Achieving optimal results in such adult patients is difficult because decreased posterior tooth anchorage is risky. This case report demonstrates the use of miniscrew implant anchorage (MIA) in a Chinese male 21 years 5 months of age with maxillary and mandibular anterior dental spacing, bimaxillary protrusion, and severe bone loss caused by periodontal disease.

[Cephalometric analysis of implant anchorage-assisted retraction of anterior teeth].

Purpose: The purpose of this study is to compare the different effects of alveolar bone remolding due to retraction of anterior teeth by two types of anchorage mini-screw implant or regular maximum anchorage.

Methods: The sample comprised 26 orthodontic patients with upper dental alveolar bone protrusion and mild crowding. The treatment plan was to remove the four first bicuspids.

[Clinical evaluation of implant anchorage for molar intrusion: report of the short-term results].

Purpose: The purpose of this study is to evaluate the efficiency and security of self-drilling mini-screw implant anchorage for molar intrusion, to achieve the right position of the mini-screw implant.

Methods: Ten patients with overerupted maxillary molars were selected, aging from 25 to 53 years old, the average age was 33 years old. There were 2 men and 8 women.