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.

[Osteogenic gene expression of human periodontal ligament stem cells during osteogenic induction].

Urpose: To isolate and identify the human periodontal ligament stem cells, evaluate osteogenetic capacity, and investigate the changes of osteogenic bone related gene expression in mineralized medium at different times.

Methods: PDLSCs were isolated by tissue culture and magnetic activated cell sorting. Immunofluorescence staining was used for identification.

[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.

Treatment of severe skeletal open bite deformity in patients with Möbius syndrome: a report of 3 cases.

Purpose: To investigate the treatment of severe skeletal open bite deformities in Möbius syndrome patients.

Materials And Methods: Three patients aged 17 to 24 years (2 male patients and 1 female patient) with Möbius syndrome were evaluated and treated with preoperative orthodontics, orthognathic surgery, and postoperative orthodontic management. One patient was treated by bilateral V osteotomies of the mandibular body and one patient with bilateral V osteotomies of the mandibular body plus a Le Fort I osteotomy.

[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.

[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.

[A preliminary study of nasoalveolar molding for infants born with cleft lip and palate].

Purpose: The purpose of this study was to apply nasoalveolar molding appliance in infants with cleft lip and plate and to observe the preliminary effects on nasal cartilage and columella.

Methods: Ten infants were treated with nasoalveolar molding. The other ten infants without any presurgical orthopedic treatment were chosen as the control group.