Reconstructed magnetic resonance image-based effusion volume assessment for temporomandibular joint arthralgia.

Background: Joint effusion is often noticed in magnetic resonance image (MRI) and its diagnostic value for arthralgia of the temporomandibular joint (TMJ) remains obscure.

Objective: To develop a method for quantitatively evaluating the joint effusion revealed in MRI and its diagnostic value for arthralgia of the TMJ.

Methods: Two-hundreds and twenty-eight TMJs, 101 with arthralgia (Group P) and 105 without (Group NP) from 103 patients, and 22 TMJs (Group CON) from 11 asymptomatic volunteers were examined by using MRI.

[A preliminary study on accuracy of implant digital impression].

Purpose: To evaluate the accuracy of implant digital impression，in order to provide guidance in digital implant prosthesis.

Methods: According to the requirements, 115 patients undergoing implantation were randomly selected. The implantation impression cap was placed and scanned with CBCT after esteosenesis.

The Triple Functions of D2 Silencing in Treatment of Periapical Disease.

Introduction: Dental caries is the most widespread chronic infectious disease. Inflammation in pulp tissues caused by dental caries will lead to periapical granulomas, bone erosion, loss of the tooth, and severe pain. Despite numerous efforts in recent studies to develop effective treatments for dental caries, the need for a potent therapy is still urgent.

[Analysis of the distance from maxillary sinus base wall to alveolar crest of first maxillary molar with age].

Purpose: To measure the height of the maxillary first molar alveolar crest in different age groups.

Methods: A total of 288 patients were divided into 3 groups: young age group (18-34 years), middle age group (35-59 years) and old age group (above 60 years). They were selected to be scanned by cone-beam computed tomography (CBCT), and the height of the first maxillary molar alveolar crest was measured though Kavo eXam Vision software.

Di-(2-ethylhexyl) phthalate inhibits DNA replication leading to hyperPARylation, SIRT1 attenuation, and mitochondrial dysfunction in the testis.

Di-(2-ethylhexyl)-phthalate (DEHP) is a ubiquitously used endocrine disruptor.There is widespread exposure to DEHP in the general population which has raised substantial public concern due to its potential detrimental health effects. It is particularly pertinent to investigate the molecular mechanisms of its testicular toxicity which are largely unknown.

Oral cavity infection: an adverse effect after the treatment of oral cancer in aged individuals.

Objective: The immune compromised patients after treatment of oral cancer may have a chance of infection by drug-resistant opportunistic microbes. We investigated the occurrence of opportunistic microorganisms in aged individuals receiving follow-up examinations after treatment of oral cancer in China.

Material And Methods: These patients were used as test group and the respective age grouped healthy individuals as control group.

[Establishment and management of electronic appointment library for dental implant patients].

Purpose: To design an excel form which can prompt dental implant patient appointment through color change, which can scientifically manage implant EMR library through appropriate interlinkage and number.

Methods: An excel form based on operating system Windows XP was designed and software 2003 Microsoft excel was used, which was configured to change color with the passage of time by the use of command "conditional format".

Results: An excel form was designed.

[Clinical assessment of acceptability of shade mismatch of infiltrated alumina ceramic crowns].

Purpose: To measure and evaluate the acceptability of shade mismatch of infiltrated alumina ceramic crowns directly in clinic.

Methods: Ten cases with restoration of hot casting alumina ceramic crown were collected in clinic. L*, a*, b*, C, H, ΔE values of hot casting alumina ceramic crowns and corresponding natural teeth in natural light were surveyed and calculated, then analyzed with CIE1976L*a*b* color system, digital photography and Photoshop CS2.

[Comparison of different means for tooth surface polishing after bracket debonding].

Purpose: To observe the tooth surface after acid etching and removing of bonding adhesive by two means for polishing.

Methods: Thirty extracted premolars for orthodontic purpose were used in this experiment. The brackets were adhered and debonded.