Wisdom Tooth Extraction Training for Dental Students: Step-by-Step or All-in-One?

For inexperienced dental students, impacted wisdom tooth extraction is a complex procedure involving a series of intricate steps. This study compared the effectiveness of step-by-step and all-in-one teaching methods for dental students learning impacted wisdom tooth extraction, by evaluating their practical abilities, understanding, and learning satisfaction. Fifty dental students were randomly assigned to either a step-by-step teaching group (Group S) or an all-in-one teaching group (Group A) for impacted wisdom tooth extraction training.

Is it necessary to remove bone-impacted teeth? A retrospective study.

Background: In clinical practice, it is risky to extract bone-impacted teeth and they're prone to a variety of complications, such as pathological fracture, adjacent tooth fracture, maxillary sinus perforation, and so on, making it difficult for clinicians to decide whether to extract them.

Purpose: In order to illustrate our opinions on the possibility of extracting full third molars (M3), 360 examples of complete third molars were analyzed in this study.

Materials And Method: We investigated 2189 patients, and 261 of them provided CBCT images of 360 teeth.

Mandibular Buccal Bifurcation Cyst: Report of Two Cases.

Mandibular buccal bifurcation cyst is a rare inflammatory odontogenic cyst. We reported two cases who complained of painful swelling of extraoral soft tissue. Intraoral examination revealed the partially erupted mandibular first molar.

Overexpression of angiogenic factors and matrix metalloproteinases in the saliva of oral squamous cell carcinoma patients: potential non-invasive diagnostic and therapeutic biomarkers.

Backgrounds: Salivary biomarkers hold huge potential for the non-invasive diagnosis of oral squamous cell carcinoma. Angiogenic factors and matrix-metalloproteinases (MMPs) are highly expressed in OSCC tissue, but their expression patterns in the saliva are unknown. This study aimed to analyze the levels of angiogenic factors and MMPs in tumor tissue and saliva of OSCC patients.

Chordin-Like 1 Regulates Epithelial-to-Mesenchymal Transition and Metastasis the MAPK Signaling Pathway in Oral Squamous Cell Carcinoma.

Background: Accumulating evidence suggests that dysregulation of Chordin-like 1 (CHRDL1) is associated with malignant biological behaviors in multiple cancers. However, the exact function and molecular mechanism of CHRDL1 in oral squamous cell carcinoma (OSCC) remain unclear.

Methods: The expression levels of CHRDL1 in OSCC tissues and CAL27 cells were determined by RT-qPCR.

Overexpression of lncRNA H19 leads to reduced proliferation in TSCC cells through miR-675-5p/GPR55.

Background: Tongue squamous cell carcinoma (TSCC) is a highly malignant tumor and oral disease. We intended to identify the function and mechanism of lncRNA H19 in TSCC.

Methods: Twenty-two TSCC samples were obtained, and expression levels of lncRNA H19 were measured by quantitative real time PCR (qRT-PCR).

mRNA and P-element-induced wimpy testis-interacting RNA profile in chemical-induced oral squamous cell carcinoma mice model.

P-element-induced wimpy testis (PIWI)-interacting RNAs (piRNAs), a novel class of noncoding RNAs, are involved in the carcinogenesis. However, the functional significance of piRNAs in oral squamous cell carcinoma (OSCC) remains unknown. In the present study, we used chemical carcinogen 4-nitroquinoline-1-oxide (4NQO) induced OSCC mouse model.

Comparing osteogenic effects between concentrated growth factors and the acellular dermal matrix.

Concentrated growth factor (CGF) is an autogenuous product that contains highly concentrated number of platelets and can be derived from venous blood by selective centrifugation. It has been speculated that local growth factors in human platelets (insulinlike growth factor, IGF; transforming growth factor, TGF-b; platelet derived growth factor, PDGF) would enhance healing of grafts and also counteract resorption. The osteogensis effect of CGF and acellular dermal matrix (ADM) for alveolar cleft defects was evaluated in this study.

An in vitro study of the long non-coding RNA TUG1 in tongue squamous cell carcinoma.

Background: This study sought to study the expression of the long non-coding RNA (lncRNA) taurine-upregulated gene 1 (TUG1) in tongue squamous cell carcinoma (TSCC) and reveal its possible function.

Methods: qRT-PCR was used to evaluate 27 samples of fresh TSCC tissues and adjacent normal tongue tissues. siRNA technology was employed to downregulate TUG1 expression in CAL-27 and SCC-9 cell lines.

TUC338 Overexpression Leads to Enhanced Proliferation and Reduced Apoptosis in Tongue Squamous Cell Carcinoma Cells In Vitro.

Purpose: Long noncoding RNAs are closely related to the development of tumors. In this study, we explored the contribution of the long noncoding RNA TUC338 to cellular processes in tongue squamous cell carcinoma (TSCC).

Materials And Methods: First, we detected TUC338 expression using quantitative reverse transcription-polymerase chain reaction in 25 patients.

MALAT1 induces tongue cancer cells' EMT and inhibits apoptosis through Wnt/β-catenin signaling pathway.

Background: MALAT1 is recognized as an oncogenic lncRNA in various malignancies. However, its expression and function in oral tongue squamous cell carcinoma are still unknown. This study aims to investigate the expression and function of MALAT1 in TSCC tissues and cells.

[Comparison of two different flap designs in removal of impacted wisdom tooth].

Purpose: The purpose of this study was to compare the effect of two different flap designs on surgical removal of impacted mandibular third molars.

Methods: Four hundred patients who required removal of impacted mandibular third molars were included in the study. They were divided into group A and group B randomly.

HIF-1α regulated tongue squamous cell carcinoma cell growth via regulating VEGF expression in a xenograft model.

Objective: We aimed to study the mechanism of hypoxia-inducible factor 1 alpha (HIF-1α) regulating the cell proliferation of tongue squamous cell carcinoma (TSCC) via vascular endothelial growth factor (VEGF).

Methods: We used RNA interference (RNAi) technique, transfected chemically synthesized siRNA against HIF-1α into CAL-27 cells, and detected the expression of HIF-1α and VEGF by real time-PCR and Western blotting in order to find out if HIF-1α regulated the expression of VEGF. A xenograft experiment was carried out to observe the role of HIF-1α on the tumor growth of tongue squamous cell carcinoma.

[Feasibility of quantified fluid shear stress loading on osteoblasts through rocking system].

To study the biomechanical behaviors of the cells, reliable fluid shear stress loading system is needed. Compared to the traditional parallel plate flow chamber (PPFC) system, a rocking system presented by Zhou offers some advantages such as easier operation, lower cost and higher quantity of pocessing. But the feasibility of it has not been practically studied.

Expression of inducible nitric oxide synthase and vascular endothelial growth factor in ameloblastoma.

The purposes of this study were to determine the correlation between the expression of inducible nitric oxide synthase (iNOS) and vascular endothelial growth factor (VEGF) in ameloblastoma and to examine the relationships of this expression to angiogenesis and the clinical and biological behaviors of the tumor. Immunohistochemical staining with streptavidin peroxidase was used to analyze iNOS and VEGF expression, and CD34 was used to evaluate microvascular density (MVD) in 35 ameloblastomas (24 primary tumors and 11 recurrences) and 5 malignant ameloblastomas. Ten odontogenic keratocysts (OKCs) served as controls.