Abstract:
Background/purpose:Anatomical features of the lingual undercut region is a potential factor that might increase the risk of displacement of a tooth or fragment. The aim of this study was to report the normal anatomical relationship of impacted lower third molar roots to the lingual cortex and soft tissues of mandible and anatomical variations of lingual balcony in the impacted third molar region. Materials and methods:One hundred impacted third molars (54 males, 46 females) from 65 (31 men, 34 women) patients were evaluated for this study using cone-beam computed tomography. Three measurements [bone thickness, angle (Ang) 1 and Ang 2] were recorded on the coronal section slices of cone-beam computed tomography images; in these images, the impacted third molar root was closest to the lingual soft tissues. Results:The average distance between the tooth root and the lingual outer cortical bone layer (bone thickness) was 1.03 mm. The averages of Ang 1 and Ang 2 were 140.61° and 153.44°. Ang 1 and Ang 2 of female patients were larger than those of male patients. Conclusion:The narrow angulation of the lingual balcony region and the relationship between roots and lingual soft tissues should be noted to avoid undesirable complication of displacement of a tooth or fragment into sublingual, submandibular, and pterygomandibular spaces. There was no relation in the floor of the mouth between the position of the impacted third molar roots and different lingual undercut angulation variations.
journal_name
J Dent Scijournal_title
Journal of dental sciencesauthors
Aktop S,Atalı O,Borahan O,Gocmen G,Garip Hdoi
10.1016/j.jds.2016.12.005subject
Has Abstractpub_date
2017-09-01 00:00:00pages
261-267issue
3eissn
1991-7902issn
2213-8862pii
S1991-7902(17)30036-3journal_volume
12pub_type
杂志文章abstract:Background/purpose:Helicobacter pylori (H. pylori) infection is the most common in the world and is associated with various gastrointestinal pathologies, including chronic gastritis, peptic ulcers, and gastric cancer. The prevalence is associated with socioeconomic conditions, with this infection being more common in d...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2019.01.010
更新日期:2019-06-01 00:00:00
abstract:Background/purpose:Endodontic treatment success depends on treatment of all root canals, but the implementation status is affected by various factors. We examined whether the fee payment change affected the extra root canal endodontic treatment (EXRCT) in adult teeth in the National Health Insurance (NHI) system of Tai...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2017.07.004
更新日期:2018-06-01 00:00:00
abstract:Background/purpose:Alveolar bone deficiency is sometimes found in the patients who need dental implantation. This study used autogenous bone grafts and titanium mesh-guided alveolar ridge augmentation for the patients with alveolar bone deficiency but requiring dental implantation. Materials and methods:In this study,...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2020.06.012
更新日期:2020-09-01 00:00:00
abstract:Background/purpose:It is well-known that diverse types of blood proteins contribute to healing process via different mechanisms. Presence and potential involvements of blood-derived abundant proteins in the platelet-rich fibrin (PRF) to its regenerative capacity have not been sufficiently emphasized in the literature. ...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2018.08.004
更新日期:2018-12-01 00:00:00
abstract:Background/purpose:Most mandibular first molars have two roots. A major common variation of this tooth is the presence of a distolingual root, which is a common Mongoloid trait in certain populations. The aim of this article was to examine crown morphology in relation to the presence of the distolingual root. Material...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2015.07.007
更新日期:2016-06-01 00:00:00
abstract:Background/purpose:Dental implants insertion can be a major factor in stress and anxiety. The aim was to evaluate the paracetamol ability to lower stress and anxiety when compared with ibuprofen during and after computer guided implant surgery utilizing CAD/CAM surgical template and a computer vision system for assessm...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2020.05.026
更新日期:2021-01-01 00:00:00
abstract:Background/purpose:A perfect sealing of root canal system is essential for preventing ingress of bacteria from the oral environment. The purpose of this study was to evaluate the apical sealing ability of bioceramic (EndoSequence BC Sealer®) and epoxy resin-based (AH Plus®) sealers at 24 h, 7 days and 4 weeks. Materia...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2019.09.010
更新日期:2020-06-01 00:00:00
abstract:Background/purpose:As the demand for surgical procedure in the retromolar area of the mandible has been increasing, the identification of the retromolar foramen (RMF) and canal involving the retromolar triangle (RMT) has become an issue of clinical concern. We examined the shape of the RMT, incidence of the RMF, and in...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2016.04.002
更新日期:2016-12-01 00:00:00
abstract:Background/purpose:Granulomatosis with polyangiitis (GPA) is a type of primary systemic vasculitis associated with the presence of anti-neutrophil cytoplasmic antibodies (ANCA). GPA mainly affects medium and small vessels and may manifest in different organs, most commonly upper respiratory tract. Oral lesions occur in...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2018.10.004
更新日期:2019-03-01 00:00:00
abstract:Background/purpose:Dental students are exposed to highly stressful environments, making them high-risk for burnout and depression. This study intended to investigate the burnout and depression level in senior dental students in Korea. Materials and methods:We conducted a cross-sectional questionnaire study among third...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2020.07.009
更新日期:2021-01-01 00:00:00
abstract:Background/purpose:The effect of aspirin on bone regeneration remains controversial. This study aimed to determine the effect of various concentrations of aspirin on cell viability, osteogenic differentiation, cell cycle, and apoptosis on ST2 cells to find an effective range of aspirin for bone regeneration induction. ...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2016.03.009
更新日期:2016-09-01 00:00:00
abstract:Background/purpose:Immediate implant placement has been considered to be a successful treatment procedure. The bone plate perforation (BPP) may be one of severe complication and potentially life-threatening situation. The aim of this virtual study is to evaluate the influences of angled implant insertion on BPP during ...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2019.03.005
更新日期:2019-09-01 00:00:00
abstract:Background/purpose:In a previous fractural study, high-gold crowns possessed the second highest fracture force. The objective of this study is to analyze the interface of porcelain fused to high-gold alloy using different observation devices. Materials and methods:High-gold crowns specimens with the morphology of a ma...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2017.03.003
更新日期:2017-12-01 00:00:00
abstract:Background/purpose:The aim of this study was to explore the presence and variability of oral Candida in adolescents before and during treatment with fixed orthodontic appliances. Materials and methods:A total of 50 patients aged 10-18 years old were randomly selected for this study. Microorganism samples were obtained...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2014.02.001
更新日期:2016-03-01 00:00:00
abstract:Background/purpose:Based on 'pressure-tension theory', the application of orthodontic force to the tooth site affects the remodeling of periodontal tissue, specifically, mechanical stress induces the release of cytokines. The purpose of this research paper is to examine death receptor 3/TNF-like protein 1A/progranulin ...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2020.01.002
更新日期:2021-01-01 00:00:00
abstract:Background/purpose:The use of cavity treatments may help in the reduction of bacteria remaining in dentinal tubules after selective carious tissue removal. This study aimed to investigate the effect of selective carious tissue removal and treatment with either 35% phosphoric acid +0.12% chlorhexidine or dentine conditi...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2020.03.016
更新日期:2020-12-01 00:00:00
abstract:Background/purpose:Clinically, PMMA resin is extensively used for fabricating provisional FPDs. However, fracture often occurs due to the unsatisfactory mechanical strength, especially within connectors of long-span provisional FPDs. The purpose of this study is to evaluate the fracture load of fiber-reinforced provisi...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2018.11.008
更新日期:2019-09-01 00:00:00
abstract:Background/purpose:Tongue pressure measurement conveys important information about eating and swallowing function. The Iowa Oral Performance Instrument® (IOPI) and KAY Swallowing Workstation® are internationally used for tongue pressure measurement, but for legal reasons cannot be used in Japan; rather the JMS tongue p...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2020.06.005
更新日期:2021-01-01 00:00:00
abstract:Background/purpose:Medication-related osteonecrosis of the jaws (MRONJ) is an unusual but quite serious complication. However, its mechanism remains unclear, and its treatment protocol is still controversial. Materials and methods:Our study involved 201 osteonecrosis of the jaw (ONJ) patients from September 2006 to Ma...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2017.12.003
更新日期:2018-09-01 00:00:00
abstract:Background/purpose:The efficacy of non-surgical periodontal therapy (NSPT) has been well discussed. The aim of this study was to investigate whether the baseline clinical periodontal parameters, radiographic defect angle, and interproximal site predict the treatment outcome of NSPT. Materials and methods:A total of 39...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2019.08.008
更新日期:2020-03-01 00:00:00
abstract:Background/purpose:The reliability and accuracy of linear distance and voxel density (VD) measurements are very important in dentistry. The purpose of this study was to assess the accuracy and reliability of linear distances and VD measurements of cone-beam computed tomography (CBCT) at different voxel sizes. Material...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2016.11.004
更新日期:2017-06-01 00:00:00
abstract:Background/purpose:Plasma rich in growth factors (PRGFs), which is prepared from autologous blood from patients, has been reported with regards to bone regeneration for dental implants. Human dental follicle cells (hDFCs) have the capacity to commit to multiple cell types such as the osteoblastic lineage. The aim of th...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2015.12.001
更新日期:2016-09-01 00:00:00
abstract:Background/purpose:The residual monomer remaining in acrylic resin can cause an allergic reaction and is toxic to oral soft tissue. This study determined the effect of the duration of ultrasonic cleaning on the amount of residual methyl methacrylate monomer in one heat-polymerized acrylic resin, Meliodent, and three au...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2016.07.003
更新日期:2016-12-01 00:00:00
abstract::Successful root canal treatment relies on correct access cavity preparation, sufficient cleaning, adequate shaping, and complete obturation. Prior to these, location of all existing canals in the tooth plays an important part in the initial treatment procedures. While most teeth have a normal morphology, we should rec...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2013.02.016
更新日期:2017-03-01 00:00:00
abstract:Background/purpose:Teledentistry has emerged as a new communication tool in various dental disciplines around the world. The aim of this study was to investigate the applicability and reliability of teledentistry in the field of diagnostic dentistry and explore the perception of Saudi dentists of its benefits and conce...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2020.04.014
更新日期:2021-01-01 00:00:00
abstract:Background/purpose:To prepare the post apace, some of the root-canal filling material has to be removed, which can affect the apical seal. The aim of this study was to compare the effect of immediate post space preparation to that of delayed post space preparation on apical sealing using three different endodontic seal...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2012.05.017
更新日期:2016-03-01 00:00:00
abstract:Background/purpose:Composite resin is currently the most widely used dental restoration material. Previous studies have demonstrated that the application of Chlorhexidine (CHX) on the dentin surface after acid etching can result in an improvement in the integrity and stability of tooth restoration through time. In orde...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2019.10.005
更新日期:2020-09-01 00:00:00
abstract:Background/purpose:Bibliometric analysis highlights the key topics and studies which have shaped the understanding and management of a concerned disease. Here the top-cited articles on oral potentially malignant disorders (OPMD) were characterized and analyzed. Materials and methods:A comprehensive search was performe...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2019.09.011
更新日期:2020-12-01 00:00:00
abstract:Background/purpose:To assess the usefulness of plastic bracket primer (PBP) for improving the bond strength of plastic brackets (PBs) using three types of orthodontic brackets, including PBs, metal brackets (MBs), and ceramic brackets (CBs). Materials and methods:A total of 162 premolars were gathered and divided equa...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2020.07.014
更新日期:2021-01-01 00:00:00
abstract:Background/purpose:It was found that body temperature would be gradually increased during pediatric full mouth rehabilitation surgery. Although the etiology is unknown, here, we introduced an effective method to maintain normothermia during this kind of surgery. Materials and methods:Following IRB approval, the medica...
journal_title:Journal of dental sciences
pub_type: 杂志文章
doi:10.1016/j.jds.2018.04.002
更新日期:2018-09-01 00:00:00