Visualization of anterior disc displacement in temporomandibular disorders on contrast-enhanced magnetic resonance imaging: comparison with T2-weighted, proton density-weighted, and precontrast T1-weighted imaging.

Objective: To compare postcontrast T1-weighted imaging (T1WI+) with precontrast T1-weighted (T1WI-), T2-weighted (T2WI), and proton density-weighted imaging (ProWI) in depiction of the anterior disc displacement (ADD) in temporomandibular disorders (TMDs).

Study Design: A total of 120 joints with TMD were included in this study. Qualitatively, Receiver operating characteristic analysis was performed.

A psychological study on patients with masticatory muscle disorder and sleep bruxism.

Sleep bruxism (SB) has been believed to be related to stress and psychosocial factors, however their implicit relationship has remained unclear. This study was conducted on patients visiting our clinic with SB and masticatory muscle disorders (MMD) for the purpose of clarifying personality and behavioral traits. This study was conducted on patients of MMD visiting our clinic.

[Evaluation of a combination chemotherapy with docetaxel and nedaplatin for patients with oral squamous cell carcinomas].

The purpose of this study was to evaluate the effectiveness and safety of combination chemotherapy with docetaxel (TXT) and nedaplatin (CDGP) for patients with oral squamous cell carcinomas. Eight patients were enrolled in this study (4 men and 4 women, with a mean age of 61.7 years).

Magnetic resonance evidence of joint effusion of the temporomandibular joint after fractures of the mandibular condyle: a preliminary report.

To investigate the clinical significance of magnetic resonance (MR) evidence of joint effusion of the temporomandibular joint after mandibular condylar fractures, magnetic resonance imaging (MRI) was performed on 18 joints in 15 patients with either unilateral or bilateral mandibular condylar fractures using a 1.5 Tesla MRI scanner (Signa, General Electric, Milwaukee, WI). MR evidence of joint effusion was evaluated and compared with the types and the positions of the fractures.

Vertical alveolar distraction osteogenesis with complications in a reconstructed mandible.

We report here a case of vertical alveolar distraction osteogenesis with many complications that required further surgical interventions. A 54-year-old man underwent mandibular resection followed by iliac bone grafting as the result of large mandibular odontogenic keratocyst. Eleven months later, alveolar vertical distraction osteogenesis was applied to the patient for prosthetic rehabilitation.

Magnetic resonance evaluation of the disk before and after arthroscopic surgery for temporomandibular joint disorders.

Objective: The purposes of this study were (1) to assess functional and pain outcomes after arthroscopic surgery on patients with temporomandibular joint disorders (TMD); (2) to evaluate postsurgical changes in disk position, mobility, and morphology on magnetic resonance imaging (MRI); and (3) to measure the association between changes in disk position, mobility, and morphology on MRI and clinical outcomes.

Study Design: A retrospective analysis was conducted of temporomandibular joints with internal derangement and osteoarthritis that were refractory to nonsurgical treatments and underwent arthroscopic surgery and on which MRI was performed within 1 month after the initial visit and 1 year after arthroscopic surgery. Clinical findings were assessed on the basis of mandibular range of motion and joint pain level on a visual analog scale at the initial visit and 1 year after arthroscopic surgery.

[Combination chemotherapy with nedaplatin and 5-fluorouracil for oral squamous cell carcinomas].

We used a new combination chemotherapy with nedaplatin (CDGP) and 5-fluorouracil (5-FU) in eleven fresh patients with oral squamous cell carcinomas. 5-FU was administered at a dose of 1,000 mg/body by continuous infusion for 24 hours on days 1 to 5. CDGP was administered at a dose of 80 or 100 mg/m2 by drip infusion for 120 minutes on day 5.

Distraction osteogenesis for reconstruction after mandibular segmental resection.

Distraction osteogenesis with the shortening and lengthening method is a well-established procedure for repairing extremities. We used this technique for reconstruction after mandibular segmental resection. A 74-year-old woman underwent distraction osteogenesis with an intraoral device, initially shortening the mandible after a 20-mm-long segmental resection, followed by lengthening at a rate of 0.