Efficacy of submental island flap closing advanced mandibular MRONJ lesion in malignancy patients.

Objective: This study evaluated the effectiveness of a submental island flap in closing advanced mandibular medication-related osteonecrosis of the jaw (MRONJ) wounds in patients with malignant tumors.

Subjects And Methods: A total of 85 patients with stage II and III MRONJ of mandible with malignant tumor as their primary disease were retrospectively analyzed. All patients underwent surgical treatment, and the soft tissue wound closure was performed either with a submental island flap (SIF) or mucoperiosteal flap (MF).

Timing of early correction of mandibular hypoplasia in skeletal class II malocclusion: a review.

Skeletal Class II malocclusion is a common malocclusion seen in clinics. It is characterized by maxillary protrusion and mandibular retrognathia and has a high incidence in adolescent mixed dentition and early permanent dentition. The early functional correction has achieved some clinical results in treating skeletal Class II malocclusion with mandibular hypoplasia.

CircLPAR3 Acts as an Oncogene in Oral Squamous Cell Carcinoma Through Regulating the miR-643/HMGB2 Network.

The malignant progression of oral squamous cell carcinoma (OSCC) has been confirmed to be mediated by a variety of factors, including circular RNA (circRNA). However, the role of circLPAR3 in OSCC development is still unclear. 70 paired OSCC tissues and normal control tissues were obtained from 70 OSCC patients.

[Effect of iRoot BP Plus on biological behavior of deciduous tooth pulp stem cells and human pulp stem cells].

Purpose: To evaluate the effect of iRoot BP Plus as pulp-capping agents on the biological behaviors of stem cells from human exfoliated deciduous teeth (SHED) and human dental pulp stem cells (DPSC).

Methods: iRoot BP Plus and ProRoot MTA sample disks were prepared and the extractive solution was extracted from iRoot BP Plus and ProRoot MTA sample disks. The influence of iRoot BP Plus and MTA extracts on the SHED and DPSC proliferation capacity was detected by CCK-8 method at 1, 3, 5 and 7 days.

[Application of layered filling technology with light cured resin].

Layered resin filling technology is based on resin curing shrinkage characteristics and aesthetic effects. This article, from several aspects such as curing light of cured resin, aesthetic effect needs, reducing shrinkage and shrinkage tension, wear resistance and intensity, gives a detailed description.

[Ultrastructural study of sclerotic dentin in non-carious cervical lesions disposed by a total-etching dentin adhesive].

Objective: To examine the ultrastructure of resin-infiltrated sclerotic dentine following the application of a three-step total-etching dentin adhesive.

Methods: Naturally-occurring, non-carious cervical lesions on extracted premolars were bonded using a total-etching dentin adhesive-Scotchbond Multi-purpose. Artificially prepared wedge-shaped lesions were also made in sound premolars and restored using the same adhesive as control.

[The effect of simulate intraoral sandblasting on the band strength between enamel and composite resin].

Objective: To study whether the bond strength between enamel and composite resin could be enhanced by intraoral sand abrasive.

Methods: Ten human maxillary first incisior teeth were divided into 2 groups The experimental group was sandblasted with 30 microm Al2O3 (CoJet-Sand, pressure 300 kPa) from a distance of 5 mm for 5 seconds, and the control group were not sandblasted. The Herculite composite resin composite cylinders were bonded with Coltene system.

[Calprotectin and total protein in gingival crevicular fluid during experimental gingivitis].

Objective: To measure GCF calprotectin and total protein for evaluating whether the calprotectin could be a sensitive marker for the initial inflammation of gingiva.

Methods: Eleven young male subjects with healthy gingiva, who had no systemic diseases, were selected for this study. GCF samples (4 teeth /person) were collected with strips of filter paper at baseline (0 day), on the 7 th, 14 th, 21 st days (without oral hygiene), and 28 th day (7 days after reestablishing oral hygiene) during experimental gingivitis.

[Computer tomograghy study on periodontal patients with anterior displaced teeth before and after combined orthodontic-periodontal treatment].

Objective: To evaluate evaluation of the changes of alveolar bone height in the periodontal patients with anterior teeth displacement before and after combined orthodontic-periodontal treatment with circumferential fibrotomy.

Methods: Totally 16 periodontal patients with anterior displaced teeth were analyzed after random clinical trialed as groups with and without circumferential fibrotomy of involving teeth followed by orthodontic intrusion. Evaluations of the changes of alveolar bone were given before and after treatment by means of periapical X-ray film and CT scan of the involving teeth.

[Cephalometric comparison of hard-tissue morphology between extraction and non-extraction orthodontic treatment in borderline cases].

Objective: To compare hard-tissue morphology by cephalometric measurements between extraction and non-extraction orthodontic treatment in borderline cases.

Methods: The samples consisted of 33 cases selected as borderline cases by 5 orthodontic specialists. They were divided into 21 extraction cases (including 13 four first premolar extraction cases and 8 second premolar extraction cases) and 12 nonextraction cases by checking patients' treatment records.

[Three-dimensional measurement of tooth inclination in cases with successful treatment].

Objective: This study aimed to observe the differences of tooth inclinations among post-treatment good cases of different malocclusions and untreated normal occlusions in order to give references on clinical adjusting of tooth inclinations.

Methods: 157 post-treatment good cases were chosen and tooth inclinations were measured on post-treatment casts using YM-2115 three-dimensional measurement instrument. The measurement results were compared with those of untreated normal occlusions.