1,786 results match your criteria aspect tooth

The association of oral function with dietary intake and nutritional status among older adults: Latest evidence from epidemiological studies.

Jpn Dent Sci Rev 2021 Nov 21;57:128-137. Epub 2021 Aug 21.

Tokyo Metropolitan Institute of Gerontology, 35-2 Sakae-cho, Itabashi-ku, Tokyo 173-0015, Japan.

Inadequate and poor quality of diet and malnutrition are common and associated with adverse health outcomes, including morbidity and mortality, among older persons. This review aimed to establish the latest evidence from studies investigating the association between oral function and nutrition among older adults. An electronic search of MEDLINE using PubMed for literature published in English between March 2018 and March 2021 was conducted, and 27 papers were identified. Read More

View Article and Full-Text PDF
November 2021

Marginal Bone Resorption Around Dental Implants Placed in Alveolar Socket Preserved Sites: A 5 Years Follow-up Study.

J Maxillofac Oral Surg 2021 Sep 18;20(3):381-388. Epub 2020 Apr 18.

Department of Dentistry, Vita-Salute University, IRCCS San Raffaele Hospital, 20132 Milan, Italy.

Aim: The present study evaluated the clinical and radiological stability of hard and soft tissues following alveolar socket preservation (ASP) procedure with a follow-up of 5 year from implant insertion.

Materials And Methods: The initial sample consisted of seven patients who underwent single tooth extraction and ASP procedure by means of demineralized bovine bone mineral particles covered with a porcine-derived non-cross-linked collagen matrix (CM). Each patient received a submerged single implant in the healed site. Read More

View Article and Full-Text PDF
September 2021

Bilayered ceramic anterior restorations with reinforcement of the incisal edge by using lithium disilicate: A multicenter retrospective survival analysis with a maximum of 6-year follow-up.

J Prosthet Dent 2021 Aug 14. Epub 2021 Aug 14.

Assistant Professor, Department of Restorative Dentistry and Biomaterials, University Medical Center Groningen, The University of Groningen, Groningen, the Netherlands. Electronic address:

Statement Of Problem: The esthetics of anterior lithium disilicate restorations can be enhanced if the buccal aspect is layered with a feldspathic ceramic. However, whether fractures and chipping of this layer are a prevalent complication is unclear.

Purpose: The purpose of this retrospective study was to evaluate the incidence of incisal fracture of a specially designed lithium disilicate reinforcement of the incisal edge for indirect anterior bilayered restorations on both teeth and implants. Read More

View Article and Full-Text PDF

A technical report on the hamular technique for radiographing maxillary anterior teeth using a digital sensor.

M H Jim Pun

Oral Radiol 2021 Aug 11. Epub 2021 Aug 11.

Appleseed Family Dental, LLC, 1199 Delaware Ave., Suite 106, Marion, OH, 43302, USA.

Objective: Obtaining an intraoral periapical radiograph of the maxillary anterior teeth can be quite challenging, especially in patients where a rigid digital sensor cannot adequately fit in the palatal vault. This technical report presents a periapical radiographic technique that places the sensor in the space surrounding the hamular notch to avoid the spatial restrictions of the hard palate, opening the possibility of parallel alignment of the sensor and the long axis of the tooth, perpendicular alignment of the tube-head to both, and a minimally distorted resultant radiographic image.

Method: Four adult patients demonstrated the quantitative and qualitative features of this hamular technique (HT). Read More

View Article and Full-Text PDF

Management of Intracanal Separated File Fragment in a Four-Rooted Mandibular Third Molar.

Case Rep Dent 2021 30;2021:5547062. Epub 2021 Jun 30.

Department of Conservative Dentistry and Endodontics, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India.

The success of endodontic therapy is attributed to complete arbitration of the bound entities concealed within the complexity and absolute disinfection of the root canal system, thus, deeming it mandatory to effectively negotiate and overcome the challenges posed by obstruction, either iatrogenic or anatomic. To achieve this, considerable depth of knowledge and expertise with reference to variations in root canal morphology and clinical mishap management is substantially as important as developing fine observation skills in conjunction with an appropriate armamentarium and a keen sense of determination, thereby enhancing one's clinical acumen by several folds. In the present case, following rubber dam isolation, the temporary restoration was removed, and the remaining carious dentin was excavated. Read More

View Article and Full-Text PDF

A Calcifying Odontogenic Cyst Associated with Compound Odontoma Mimicking a Tooth Germ.

Case Rep Dent 2021 28;2021:9991772. Epub 2021 Jun 28.

Department of Oral Surgery and Pathology, School of Dentistry, Universidade Federal de Minas Gerais, Belo Horizonte, MG, Brazil.

Calcifying odontogenic cyst (COC) is a rare cyst that affects mainly the anterior region of the jaws. Generally, it appears as a unilocular radiolucent lesion containing peripheral foci of calcification, but with radiographic variations depending on the type of presentation. Here, we report an atypical case of COC associated with odontoma, initially diagnosed as a tooth germ, in the posterior region of the mandible of a 10-year-old male patient. Read More

View Article and Full-Text PDF

Localised juvenile spongiotic gingival hyperplasia: A case of spontaneous resolution and a literature review.

Eur J Paediatr Dent 2021 Jun;22(2):159-162

ASST Santi Paolo e Carlo, Ospedale San Paolo, Clinica Odontoiatrica - Department of Biomedical, Surgical and Dental Sciences, University of Milan, Milan, Italy.

Aim: Localised juvenile spongiotic gingival hyperplasia (LJSGH) is a benign lesion occurring in young patients as gingival erythema and overgrowth, typically localised on gingiva of maxillary incisors. The aim of this work is to report a case of LJSGH where complete spontaneous regression was achieved together with a review of the literature on the topic.

Case Report: An 8-year-old girl was referred for a gingival painless lesion, which had appeared spontaneously one year before and was refractory to periodontal treatment. Read More

View Article and Full-Text PDF

Efficacy of Different Endodontic Irrigant Activation Techniques on Debris Removal from the Mesial Root Canal System of Mandibular Molars.

J Contemp Dent Pract 2021 Mar 1;22(3):231-236. Epub 2021 Mar 1.

Department of Restorative Dental Science, College of Dentistry, King Saud University, Riyadh, Kingdom of Saudi Arabia.

Aim And Objective: This study was conducted to compare debris removal from the mesial canal system with four different irrigation techniques: sonic activation with EDDY, passive ultrasonic irrigation (PUI), mechanical activation with the XP-endo Finisher (XPF), and manual dynamic irrigation (MDI) with gutta-percha.

Materials And Methods: Fifty-six extracted mandibular molars with isthmus in the apical 5 mm in mesial roots were sectioned horizontally at 3 mm and 5 mm from the apex. The sections were reassembled, and the mesial canals were prepared chemomecahanically. Read More

View Article and Full-Text PDF

Nuclear Magnetic Resonance Microimaging for the Qualitative Assessment of Root Canal Treatment: An Ex Vivo Preliminary Study.

Diagnostics (Basel) 2021 Jun 1;11(6). Epub 2021 Jun 1.

Department of Oral and Maxillo Facial Sciences, Sapienza Università di Roma, 00161 Rome, Italy.

Aim: To assess the potential ability of nuclear magnetic resonance micro-imaging (mMRI) to visualize and identify soft tissue debris and unfilled spaces inside radicular canals in endodontic treated extracted teeth, for understanding the causes of treatment failure. Toward this goal, multi-parametric mMRI and cone beam computed tomography (CBCT) were compared.

Methodology: A non-recoverable root treated human tooth was extracted due to endodontic failure and excessive mobility. Read More

View Article and Full-Text PDF

Relationship between periodontal diseases and newly-diagnosed metabolic syndrome components in a sub-Saharan population: a cross sectional study.

BMC Oral Health 2021 06 29;21(1):326. Epub 2021 Jun 29.

Faculty of Medicine and Biomedical Sciences, University of Yaoundé I, Yaoundé, Cameroon.

Background: Oral health is a frequently ignored aspect of global health in sub-Saharan patients. Periodontitis, a very frequent oral disease has been proven to be associated to development of the metabolic syndrome. This study aims to evaluate the relationship between periodontal disease and metabolic syndrome components in a sub-Saharan population. Read More

View Article and Full-Text PDF

CBCT comparison of buccal shelf bone thickness in adult Dravidian population at various sites, depths and angulation - A retrospective study.

Int Orthod 2021 Sep 22;19(3):471-479. Epub 2021 Jun 22.

Saveetha Institute Of Medical And Technical Sciences, Saveetha Dental College, Saveetha University, Department of Orthodontics, 600077 Chennai, India. Electronic address:

Introduction: It is important to understand the variations in the bone thickness of the buccal shelf region among different ethnic groups, as these variations will influence the placement and success of the buccal shelf mini-screw.

Objectives: The primary objective was to analyse the total buccal bone and cortical bone thickness of the mandibular buccal shelf region (MBS) at various depths, mesiodistal positions and angulations in Dravidian population and to find the best site for insertion of buccal shelf mini-implant.

Material And Methods: This was a retrospective study done on 30 cone-beam computed tomography samples collected from 30 subjects, aged 16 to 25 years and of Dravidian origin, who reported for orthodontic treatment. Read More

View Article and Full-Text PDF
September 2021

Prognosis of primary teeth following intrusive luxation according to the degree of intrusion: A retrospective cohort study.

Dent Traumatol 2021 Jun 24. Epub 2021 Jun 24.

Department of Social and Preventive Dentistry, Post-graduate Program in Dentistry, Federal University of Pelotas, Pelotas, Brazil.

Background/aim: The degree of intrusion is an important aspect to be evaluated when treating children following intrusive luxation. The aim of this retrospective cohort study was to evaluate re-eruption rates and the occurrence of sequelae in intruded primary teeth according to the degree of intrusion.

Material And Methods: A total of 238 teeth from 168 patients diagnosed with and treated for intrusion over a 16-year period at a specialized trauma center in South Brazil were included in this study. Read More

View Article and Full-Text PDF

Impact of Canal Taper and Access Cavity Design on the Life Span of an Endodontically Treated Mandibular Molar: A Finite Element Analysis.

J Endod 2021 Sep 15;47(9):1472-1480. Epub 2021 Jun 15.

Department of Conservative Dentistry, Pusan National University School of Dentistry, Dental Research Institute, Dental and Life Science Institute, Gyeongnam, Korea. Electronic address:

Introduction: This study investigated the impact of different canal tapers and access cavity designs on the life span of endodontically treated mandibular first molars using the finite element method.

Methods: Finite element analysis was performed on simulated models with 3 access cavity designs (traditional, conservative, and truss). The mesial canals were prepared to either constant tapers of 25/. Read More

View Article and Full-Text PDF
September 2021

Assessment of tooth displacement during the cast-free digital processing of milled dentures.

J Prosthet Dent 2021 Jun 8. Epub 2021 Jun 8.

Private practice, Vallesaccarda, AV, Italy.

Statement Of Problem: Denture tooth displacement may have a significant impact on denture occlusion. This aspect has seldom been investigated, especially for digital denture processing techniques.

Purpose: The purpose of this clinical study was to evaluate the accuracy of tooth position with milled digital dentures processed without physical casts. Read More

View Article and Full-Text PDF

External cervical resorption-a review of pathogenesis and potential predisposing factors.

Int J Oral Sci 2021 06 10;13(1):19. Epub 2021 Jun 10.

Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology & National Center of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology & Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health & NMPA Key Laboratory for Dental Materials, Beijing, China.

External cervical resorption (ECR) refers to a pathological state in which resorption tissues penetrate into the dentin at the cervical aspect of the root. Despite being latent in its initial phase, ECR could cause severe damage to mineralized dental tissue and even involve the pulp if not given timely diagnosis and treatment. Nevertheless, the etiology of ECR is still poorly understood, which adds to the difficulty in early diagnosis. Read More

View Article and Full-Text PDF

Comparison of gingival biotype in smokeless tobacco users (Gutka and Paan) and non-tobacco users.

J Pak Med Assoc 2021 Jun;71(6):1561-1565

Department of Operative Dentistry, Dr. Ishrat ul Ebad Khan Institute of Oral Health Sciences, Karachi, Pakistan.

Objective: To assess the gingival biotypes in smokeless tobacco (Gutka and Paan) users and compare it with non-tobacco users in Karachi sub-population using trans-gingival probing method (TRAN).

Methods: This in-vivo, cross sectional study was conducted in the department of Operative Dentistry from 20th February 2019 to 25th June 2019 Dow University of Health Sciences, Karachi after obtaining ethical approval from the Institutional review board of DUHS (Ref: IRB-1207/DUHS/Approval/2019/21). A total of 70 participants, 35 subjects currently using smokeless tobacco (Gutka and Paan) and 35 non-tobacco users from both genders were included in the study after taking informed consent. Read More

View Article and Full-Text PDF

Persistent polyamorphism in the chiton tooth: From a new biomineral to inks for additive manufacturing.

Proc Natl Acad Sci U S A 2021 Jun;118(23)

Materials Science and Engineering, Northwestern University, Evanston, IL 60208;

Engineering structures that bridge between elements with disparate mechanical properties are a significant challenge. Organisms reap synergy by creating complex shapes that are intricately graded. For instance, the wear-resistant cusp of the chiton radula tooth works in concert with progressively softer microarchitectural units as the mollusk grazes on and erodes rock. Read More

View Article and Full-Text PDF

Pre-schoolers' tooth brushing behaviour and association with their oral health: a cross sectional study.

BMC Oral Health 2021 06 2;21(1):283. Epub 2021 Jun 2.

Department of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Malaya, 50603, Kuala Lumpur, Malaysia.

Background: Toothbrushing is an important yet neglected behaviour that affects the oral health of preschool children. Little is reported on parental supervision, an essential aspect of routine effective toothbrushing in this age group. The aim of this study was to evaluate pre-schoolers' toothbrushing behaviour including parental involvement and its association with their oral health. Read More

View Article and Full-Text PDF

A Pilot Retrospective Study on the Effect of Bone Grafting after Wisdom Teeth Extraction.

Materials (Basel) 2021 May 26;14(11). Epub 2021 May 26.

Department of Surgical Sciences and Integrated Diagnostics, University of Genoa, 16100 Genoa, Italy.

This study aimed to retrospectively investigate the effect of bone graft after extraction of wisdom teeth impacting with the distal aspect of the second molar, on soft tissue wound healing, bone loss, and periodontal parameters. Sixteen patients treated an for impacted mandibular wisdom tooth at least one year ago were re-called (18 teeth). Dental panoramic tomography and periodontal parameters were assessed. Read More

View Article and Full-Text PDF

Patients' opinion on the use of 2 generations of power-driven water flossers and their impact on gingival inflammation.

Clin Exp Dent Res 2021 May 31. Epub 2021 May 31.

Department of Periodontology, Faculty of Odontology, University of Malmö, Malmö, Sweden.

Objectives: To assess patients' opinion on the use of 2 generations of power-driven water flossers and their impact on gingival inflammation.

Material & Methods: In the present prospective cohort study 24 periodontitis patients under regular supportive periodontal therapy used daily 2 generations of a power-driven water flosser (Sonicare AirFloss [SAF] and Sonicare AirFloss Ultra [SAFU]) for 12 weeks each. Patients were instructed to position the nozzle interproximally from the buccal aspect at each interproximal space. Read More

View Article and Full-Text PDF

Localization of the First Mandibular Molar Roots in Relationship to the Mandibular Canal in Small Breed Dogs-A Tomography Imaging Study.

Front Vet Sci 2021 12;8:684763. Epub 2021 May 12.

Dentistry and Oral Surgery Service, Department of Clinical Science, North Carolina State University, Raleigh, NC, United States.

The intimate relationship between the mandibular canal (MC) and the first mandibular molar tooth presents challenges when performing dentoalveolar surgical procedures due to the probability of causing iatrogenic injury to the inferior alveolar neurovascular bundle. Superimposition between the MC and the first molar (M1) tooth roots is often observed on intraoral dental radiographs in small breed dogs. However, due to the radiograph's bidimensional nature, it is impossible to determine the buccal or lingual localization of the first molar roots with respect to the MC. Read More

View Article and Full-Text PDF

Double-layer technique using an ADM and CAF to treat a mandibular incisor with a Cairo RT2 defect: 8.5 year results.

Douglas H Mahn

Clin Adv Periodontics 2021 May 29. Epub 2021 May 29.

10610-B Crestwood Drive, Manassas, Virginia, 20109, USA.

Introduction: The purpose of this case report is to document the 8.5 years result of treatment of a mandibular incisor having a buccal Cairo Recession Type 2 (RT2) gingival recession defect (GRD) using a double-layer technique using an acellular dermal matrix (ADM) with a coronally advanced flap (CAF). To the author's knowledge, no long-term results of this treatment modality in the mandibular incisor area have been reported. Read More

View Article and Full-Text PDF

Impact of piezocision-assisted orthodontics on root resorption and alveolar bone: a prospective observational study.

Clin Oral Investig 2021 Jul 26;25(7):4341-4348. Epub 2021 May 26.

Faculty of Dentistry, Université de Montréal, Montreal, QC, Canada.

Objectives: To assess the impact of orthodontic treatment combined with piezocision (OT-PC) on root structure and alveolar bone.

Materials And Methods: Twelve adults were treated with OT-PC. Pre- and post-treatment CBCT examinations evaluated apical root resorption (ARR) and alveolar bone height and thickness changes. Read More

View Article and Full-Text PDF

Heterotopic Polyodontia: Diagnosis and Surgical Removal of a Dentigerous Cyst Comprising 2 Dental Structures in a 14-Year-Old Horse.

J Vet Dent 2021 Mar 25;38(1):30-33. Epub 2021 May 25.

Pioneer Equine Hospital, Oakdale, CA, USA.

A 14-year-old American Paint Horse mare was referred for further evaluation of a firm mass with an associated draining tract at the base of the left ear suspected to be a dentigerous cyst. Approximately three months prior, the draining tract had been excised under the presumed diagnosis of an abscess with no improvement. Physical examination revealed a firm mass palpable at the base of the left ear with a draining tract that did not elicit any pain response on palpation. Read More

View Article and Full-Text PDF

Facial Analysis for the Digital Planning of a Full-Mouth Implant Restoration.

Ryan Tak On Tse

Compend Contin Educ Dent 2021 Mar;42(3):128-132

Private Practice, Hong Kong.

As dental implant treatment has evolved over the years, greater emphasis has been placed on the dentofacial aspect of restorations, with strong consideration given to incisal edge position and preoperative lip dynamics. In this case report, a male patient desired a fixed implant prosthesis to replace his failing dentition and tooth-supported fixed and removable appliances. Utilizing a dentofacial analyzer, facial reference glasses, intraoral scans, and CBCT scans, the clinician was able to plan and complete the implant case in a digital workflow. Read More

View Article and Full-Text PDF

Immediate single-tooth replacement with acellular dermal matrix allogeneic bone on sloped platform-switching implants: A case series.

Int J Oral Implantol (Berl) 2021 05;14(2):213-222

Achieving predictable success with implants in the aesthetic zone is essential for clinicians. Promoting marginal bone and stability of the gingival environment is key to obtaining a predictable aesthetic outcome. The present study aimed to describe a technique that combines a flapless approach to immediate extraction and placement of sloped implants, using an acellular dermal matrix to contain the coronal aspect of a deproteinised bovine bone mineral graft. Read More

View Article and Full-Text PDF

Dental microwear texture analysis along reptile tooth rows: complex variation with non-dietary variables.

R Soc Open Sci 2021 Feb 3;8(2):201754. Epub 2021 Feb 3.

Centre for Palaeobiology Research, School of Geography, Geology and the Environment, University of Leicester, Leicester LE1 7RH, UK.

Dental microwear texture analysis (DMTA) is a powerful technique for reconstructing the diets of extant and extinct taxa. Few studies have investigated intraspecific microwear differences along with tooth rows and the influence of endogenous non-dietary variables on texture characteristics. Sampling teeth that are minimally affected by non-dietary variables is vital for robust dietary reconstructions, especially for taxa with non-occlusal (non-chewing) dentitions as no standardized sampling strategies currently exist. Read More

View Article and Full-Text PDF
February 2021

Pulp Regeneration in an Immature Maxillary Central Incisor Using Hyaluronic Acid Hydrogel.

Contemp Clin Dent 2021 Jan-Mar;12(1):94-98. Epub 2021 Mar 20.

Demonstrator, J.N. Kapoor DAV Centenary Dental College, Yamunanagar, Haryana, India.

Pulp regenerative procedure is one of the treatment options for endodontically involved immature permanent teeth. The regenerative endodontic procedure was performed in a child of 9 years. After thorough canal disinfection using triple antibiotic paste for 21 days, bleeding was induced from the apex to provide for the stem cells. Read More

View Article and Full-Text PDF

Ectopic tooth in maxillary sinus compressing the nasolacrimal canal: A case report.

Medicine (Baltimore) 2021 May;100(18):e25514

Department of Stomatology.

Rationale: Ectopic tooth is tooth erupting out of normal anatomical position. Ectopic tooth can occur in different positions, such as maxillary sinus and nasal cavity. In this article, we present a rare case of an ectopic tooth with a dentigerous cyst in the maxillary sinus compressing the nasolacrimal canal. Read More

View Article and Full-Text PDF

Polyoxymethylene as Material for Removable Partial Dentures-A Literature Review and Illustrating Case Report.

J Clin Med 2021 Apr 2;10(7). Epub 2021 Apr 2.

Department of Prosthodontics and Materials Science, University of Leipzig, Liebigstr. 12, 04103 Leipzig, Germany.

Compared to thermoplastic manufacturing techniques, computer-aided design (CAD) and computer-aided manufacturing (CAM) technologies make it easier to process modern restorative and prosthetic materials with improved material properties. In dentistry, tooth-colored alternatives to metal-based frameworks for application in removable dental prostheses (RDP) emerged. With regard to this aspect, the current article provides an overview of the specific material properties of polyoxymethylene (POM). Read More

View Article and Full-Text PDF