10,542 results match your criteria molars 194 years


Repair of teeth with cracks in crowns and roots: An observational clinical study.

Int Endod J 2021 Jul 22. Epub 2021 Jul 22.

Head and Neck Department, "Fondazione Policlinico Universitario IRCCS", Rome, Italy.

Aim: This retrospective observational study investigated the survival rate of teeth with radicular cracks that were restored using composite materials.

Methodology: The study was approved by the Ethical Committee of Sistema Sanitario Nazionale (prot. N°2370CELazio1), Clinicaltrials. Read More

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Pattern of third molar impactions in north-eastern peninsular Malaysia: A 10-year retrospective study.

Niger J Clin Pract 2021 Jul;24(7):1028-1036

Oral Medicine Unit, Shaheed Zulfiqar Ali Bhutto Medical College, Islamabad, Pakistan.

Background: Third molar impaction, if left untreated, has the potential to cause several complications. The evaluation of surgical difficulty of impacted third molar extraction aids in better formulation of treatment plan by minimizing surgical complications.

Objective: This study aimed to determine the prevalence of third molar impaction and related pathologic conditions in a cohort of patients living in North-eastern Peninsular Malaysia. Read More

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The effects of a corticotomy on space closure by molar protraction using TSADs in patients with missing mandibular first molars.

Orthod Craniofac Res 2021 Jul 20. Epub 2021 Jul 20.

Associate professor and Chair, Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.

Introduction: The purpose of this study was to evaluate the effects of a triangular-shaped corticotomy on the protraction of second and third molars in patients with missing mandibular first molars.

Subjects And Methods: The corticotomy and non-corticotomy groups consisted of sixteen first molars in fifteen patients (28.6 ± 9. Read More

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Sealing of cavitated occlusal carious lesions in the dentine of deciduous molars: a two-year randomised controlled clinical trial.

Clin Oral Investig 2021 Jul 21. Epub 2021 Jul 21.

Federal University of Rio Grande Do Sul, UFRGS, Porto Alegre, Rio Grande do Sul, Brazil.

Objectives: This two-arm, parallel-group, tooth-randomised, controlled noninferiority clinical trial aimed to compare survival rates between the sealing and restoring of cavitated occlusal carious lesions in dentine [International Caries Detection and Assessment System (ICDAS) 5] of deciduous molars using resin-modified glass-ionomer cement (RMGIC) and to assess caries progression radiographically.

Materials And Methods: A total of 68 molars with ICDAS 5 occlusal lesions were randomly allocated into two groups, a sealing group (n = 31), in which RMGIC was placed directly over the carious lesion, and a restoration group (n = 37), in which a restoration with the same material was placed after selective caries removal. During the baseline and follow-up visits, dental caries was registered and caries activity was assessed according to a visuotactile criterion. Read More

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Non-surgical treatment for periodontitis and peri-implantitis: longitudinal clinical and bacteriological findings-A case report with a 7-year follow-up evaluation.

SAGE Open Med Case Rep 2021 5;9:2050313X211029154. Epub 2021 Jul 5.

Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University, Tokyo, Japan.

The aim of this report is to show that periodontitis and peri-implantitis with horizontal bone resorption in a 68-year-old male patient were successfully treated by non-surgical treatment. Scaling with an ultrasonic device was performed for moderate periodontitis around the mandibular left first premolar and moderate peri-implantitis around the maxillary right molar implants. Root planing with a metal curette was performed for the periodontal site, and debridement with a plastic curette was performed for the peri-implant site. Read More

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Glass Ionomer Sealant versus Fluoride Varnish Application to Prevent Occlusal Caries in Primary Second Molars among Preschool Children: A Randomized Controlled Trial.

Caries Res 2021 Jul 20:1-11. Epub 2021 Jul 20.

Paediatric Dentistry, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong, China.

Fissure sealant is a recommended preventive measure on permanent molars, but its efficacy on primary molars in preschool children is still in doubt. Sodium fluoride varnish (NaFV) enhances remineralization and is effective in preventing caries in smooth surfaces, but limited information is available regarding its use on occlusal surfaces of primary molars. The present study aimed to compare the efficacy of glass ionomer sealant (GIS) versus topical application of 5% NaFV in preventing and arresting occlusal caries in primary second molars among preschool children. Read More

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Gold(III) to Ruthenium(III) Metal Exchange in Dithiocarbamato Complexes Tunes Their Biological Mode of Action for Cytotoxicity in Cancer Cells.

Molecules 2021 Jul 3;26(13). Epub 2021 Jul 3.

Department of Chemical Sciences, University of Padova, Via F. Marzolo 1, 35131 Padova, Italy.

Malignant tumors have affected the human being since the pharaoh period, but in the last century the incidence of this disease has increased due to a large number of risk factors, including deleterious lifestyle habits (i.e., smoking) and the higher longevity. Read More

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Mandibular skeletal posterior anatomic limit for molar distalization in patients with Class III malocclusion with different vertical facial patterns.

Korean J Orthod 2021 Jul;51(4):250-259

Department of Orthodontics, Dankook University College of Dentistry, Cheonan, Korea.

Objective: The aim of this study was to compare the differences in mandibular posterior anatomic limit (MPAL) distances stratified by vertical patterns in patients with skeletal Class III malocclusion by using cone-beam computed tomography (CBCT).

Methods: CBCT images of 48 patients with skeletal Class III malocclusion (mean age, 22.8 ± 3. Read More

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Molar pregnancy in the last 50 years: A bibliometric analysis of global research output.

Placenta 2021 Jul 10;112:54-61. Epub 2021 Jul 10.

Department of Pharmacology and Toxicology, College of Medicine, University of the Philippines Manila, Manila, Philippines; Division of Trophoblast Diseases, Department of Obstetrics and Gynecology, University of the Philippines - Philippine General Hospital, Taft Avenue, Manila, Philippines.

Molar pregnancy is a gestational trophoblastic disease characterized by an abnormal growth of placental tissues because of a nonviable pregnancy. The understanding of the pathophysiology and management of molar pregnancy has significantly increased in the recent years. This study aims to determine the characteristics and trends of published articles in the field of molar pregnancy through a bibliometric analysis. Read More

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Dental and orthodontic follow-up in Nevoid Basal Cell Carcinoma Syndrome patient with odontogenic keratocystic tumors.

J Stomatol Oral Maxillofac Surg 2021 Jul 15. Epub 2021 Jul 15.

Université de Paris, Paris, France; Service de chirurgie maxillofaciale et chirurgie plastique, 149 rue de Sèvres, 75015 Paris, France; Centre de Références de Maladies Rares des fentes et malformations faciales. Electronic address:

Objectives: Nevoid Basal Cell Carcinoma Syndrome (NBCS) is a rare genetic condition affecting multiple organs including the maxillofacial and dental region. The surgical removal of the odontogenic keratocystic tumors (OKT), the high rate of recurrence leads to a iatrogenic tooth loss requiring dental care. The aim of this study is therefore to describe the dental and orthodontic management, and to assess the impact of surgery on facial growth and oral development. Read More

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Retrospective comparison of dental and skeletal effects in the treatment of Class II malocclusion between Herbst and Xbow appliances.

Am J Orthod Dentofacial Orthop 2021 Jul 14. Epub 2021 Jul 14.

Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil.

Introduction: The purpose of this research was to compare dentoskeletal changes produced by Herbst and Xbow appliances in late mixed/early permanent dentition patients with Class II Division 1 malocclusion to an untreated control group.

Methods: The retrospective cohort consisted of 41 patients treated with the Herbst appliance on average for 14 months (mean age of 11.3 years), 41 patients treated with Xbow appliance on average for 14 months (mean age of 11. Read More

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Sympathetic Nerve Activity During Tooth Extraction in Women Is Related to Dental Anxiety Immediately After Surgery.

J Oral Maxillofac Surg 2021 Jun 18. Epub 2021 Jun 18.

Professor, Department of Dental Anesthesiology, Field of Oral Maxillofacial Rehabilitation, Developmental Therapeutics Course, Graduate School of Medical and Dental Sciences.

Purpose: This study assessed the relationship between changes in autonomic nervous system activity during impacted mandibular third molar extraction and a patient's postoperative psychological status, with the overarching aim of informing the development of interventions to reduce dental phobia and anxiety. We hypothesized that changes in autonomic nervous system activity during tooth extraction are related to postoperative psychology.

Methods: In our prospective cohort study, heart rate variability, heart rate (HR), and systolic blood pressure (SBP) were recorded during impacted mandibular third molar extraction. Read More

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Survival rate and associated factors affecting pulpectomy treatment outcome in primary teeth.

Clin Exp Dent Res 2021 Jul 16. Epub 2021 Jul 16.

Department of Pediatric Dentistry, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand.

Objectives: To evaluate the survival rates of pulpectomized primary teeth treated under general anesthesia (GA) or local anesthesia (LA), and to determine which factors affected tooth survival following pulpectomy.

Materials And Methods: This retrospective study collected data from dental records. Patients under 5 years of age received dental treatment under GA or LA during 2007-2016, with at least one anterior or posterior tooth receiving a pulpectomy, were recruited. Read More

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Where is the center of resistance of a maxillary first molar? A 3-dimensional finite element analysis.

Am J Orthod Dentofacial Orthop 2021 Jul 13. Epub 2021 Jul 13.

Division of Orthodontics, Department of Craniofacial Sciences, University of Connecticut Health Center, Farmington, CT. Electronic address:

Introduction: The center of resistance (C) is regarded as the fundamental reference point for predictable tooth movement. Accurate estimation can greatly enhance the efficiency of orthodontic tooth movement. Only a handful of studies have evaluated the C of a maxillary first molar; however, most had a low sample size (in single digits), used idealized models, or involved 2-dimensional analysis. Read More

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Influence of Dental Occlusion on Oculomotory Function - A Pilot Study.

Ann Anat 2021 Jul 13:151804. Epub 2021 Jul 13.

University of Greifswald, Department of Orthodontics, Walther-Rathenau-Straße 42a, 17475 Greifswald, Germany.

The aim of this study was to examine the interaction between the oculomotory system and the stomatognathic system based on morphofunctional relationships between the corresponding cranial nerves, their core areas and the reticular formation as a "link" by means of optometric examinations. Test subjects (N = 100) were prospectively recruited and divided into two groups: a young-age (N = 53, age 6-16 years) and old-age group (N = 47, 23-78 years). We determined the horizontal range of convergence and divergence as well as the near convergence point. Read More

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An cone-beam computed tomography analysis of root and canal morphology of maxillary first permanent molars in an Indian population.

Indian J Dent Res 2021 Jan-Feb;32(1):104-109

Department of Conservative Dentistry, School of Dentistry, Dental Research Institute, Pusan National University, Yangsan, South Korea.

Background: The root and canal morphology of maxillary first permanent molars (MFPMs) is a very widely studied issue in endodontics. However, only one study has been conducted to date on this issue using cone-beam computed tomography (CBCT) in India, and the sample consisted of extracted teeth.

Aim: To investigate the root and canal morphology of MFPMs in an Indian population, by using CBCT. Read More

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Compliance of postoperative instructions following the surgical extraction of impacted lower third molars.

Indian J Dent Res 2021 Jan-Feb;32(1):87-91

Department of Oral and Maxillofacial Surgery, VSPM Dental College and Research Centre, Nagpur, Maharashtra, India.

Introduction: The way postoperative care instructions are presented by the professional (verbal and/or written) is the key element that influences quality of treatment. Hence, the aim of the present study was planned to assess the patient's compliance with postoperative care instructions given in different forms following the surgical removal of impacted lower third molars.

Materials And Methods: Forty patients scheduled to undergo surgical extraction of impacted lower third molars under local anesthetic were randomly assigned to one of two groups. Read More

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Influence of caries and molar incisor hypomineralization on oral health-related quality of life in children.

Clin Oral Investig 2021 Jul 14. Epub 2021 Jul 14.

Department of Paediatric Dentistry, School of Dentistry, University of Leipzig, Liebigstr. 12, 04103, Leipzig, Germany.

Objectives: This study was aimed to compare the impact of caries and molar incisor hypomineralization (MIH) on oral health-related quality of life (OHRQoL) in children.

Material And Methods: A total of 528 German children aged 7 to 10 years were recruited, half affected by caries and the other half affected by MIH. Both groups were matched according to age, sex, and social status and divided into 3 categories according to severity. Read More

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Long-term clinical outcomes of periodontal regeneration with Enamel Matrix Derivative (EMD): a retrospective cohort study with a mean follow-up of 10 years.

J Periodontol 2021 Jul 14. Epub 2021 Jul 14.

Department of Periodontology, School of Dental Medicine, University of Bern, Bern, Switzerland.

Background: Despite the large body of evidence on the efficacy of Enamel Matrix Derivative (EMD) in the treatment of periodontal intrabony defects, few studies reported long-term data (≥ 10-year).

Methods: Periodontal patients treated with regenerative surgery with EMD between 1999 and 2012 were invited to participate in a clinical examination. The following clinical parameters were recorded and compared at baseline (T0), 6 months after surgery (T1) and after at least 8 years of follow-up (T2): probing depth (PD), gingival recession (GR), clinical attachment level (CAL), plaque and bleeding scores. Read More

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Correlation between Radiomorphometric Indices and Edentulous Mandibular Arches to Diagnose Osteoporosis Using Orthopantomogram in West Bengal State in India.

J Contemp Dent Pract 2021 Feb 1;22(2):166-171. Epub 2021 Feb 1.

Department of Prosthodon- tics, Crown Bridge, Aesthetic Dentistry and Oral Implantology, Dental Institute, RIMS, Ranchi, Jharkhand, India, Phone: +91 08285081688, e-mail:

Aim: To assess the influence of gender and age on different parameters of alveolar bone loss using orthopantomogram.

Materials And Methods: Eighty subjects were enrolled in the study (20 dentulous and 60 completely edentulous), fulfilling the inclusion and exclusion criteria. Completely edentulous subjects were divided into four groups (15 males and 15 females above 60 years) and (15 males and 15 females below 60 years). Read More

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February 2021

Quality-adjusted Time Without Symptoms of disease or Toxicity (Q-TWiST) analysis of CPX-351 versus 7 + 3 in older adults with newly diagnosed high-risk/secondary AML.

J Hematol Oncol 2021 Jul 13;14(1):110. Epub 2021 Jul 13.

H. Lee Moffitt Cancer Center and Research Institute, Tampa, FL, USA.

Background: CPX-351 (United States: Vyxeos; Europe: Vyxeos Liposomal), a dual-drug liposomal encapsulation of daunorubicin and cytarabine in a synergistic 1:5 molar ratio, is approved by the US FDA and the EMA for the treatment of adults with newly diagnosed therapy-related acute myeloid leukemia or acute myeloid leukemia with myelodysplasia-related changes. In a pivotal phase 3 study that evaluated 309 patients aged 60 to 75 years with newly diagnosed high-risk/secondary acute myeloid leukemia, CPX-351 significantly improved median overall survival versus conventional 7 + 3 chemotherapy (cytarabine continuous infusion for 7 days plus daunorubicin for 3 days), with a comparable safety profile. A Quality-adjusted Time Without Symptoms of disease or Toxicity (Q-TWiST) analysis of the phase 3 study was performed to compare survival quality between patients receiving CPX-351 versus conventional 7 + 3 after 5 years of follow-up. Read More

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Age estimation based on Willems method versus country specific model in Saudi Arabia children and adolescents.

BMC Oral Health 2021 Jul 13;21(1):341. Epub 2021 Jul 13.

Department of Oral Health Sciences, KU Leuven & Dentistry, University Hospitals Leuven, Leuven, Belgium.

Background: The aims of this study were to create a method for estimation of dental age in Saudi children and adolescents based on the Willems model developed using the Belgian Caucasian (BC) reference data and to compare the ability of the two models to predict age in Saudi children.

Methods: Development of the seven lower left permanent mandibular teeth was staged in 1146 panoramic radiographs from healthy Saudi children (605 male, 541 female) without missing permanent teeth and without all permanent teeth fully developed (except third molars). The data were used to validate the Willems BC model and to construct a Saudi Arabian-specific (Willems SA) model. Read More

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Comparison of Two Types of Pit and Fissure Sealants in Reducing the Incidence of Dental Caries Using a Split-Mouth Design.

Acta Stomatol Croat 2021 Jun;55(2):137-146

Richard M. Fairbanks School of Public Health, Indiana University/Purdue University. Indianapolis, USA.

Objectives: To evaluate the effectiveness of two pit and fissure sealants (PFS) in reducing the incidence of dental caries in schoolchildren.

Material And Methods: A randomized split-mouth experimental design was used in a sample of 140 subjects assigned to two groups. The sealants used were Clinpro©3M and BeautiSealant©Shofu placed in first permanent molars (FPMs). Read More

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Relationship between the difference in electric pulp test values and the diagnostic type of pulpitis.

BMC Oral Health 2021 Jul 10;21(1):339. Epub 2021 Jul 10.

Department of Endodontics, School of Stomatology, Tianjin Medical University, #12 Qi Xiang Tai Road, He Ping District, Tianjin, 300070, China.

Background: According to the diagnosis criteria of the American Association of Endodontists (AAE), sensitive responses to cold and/or heat tests of suspected teeth compared with those of control teeth can be used for the diagnosis of pulpitis, but the role of electric pulp test (EPT) is not mentioned. It is believed that EPT has some limitations in determining the vitality of the pulp. The aim of this study was to explore the association between the difference in EPT values and the differential diagnoses of reversible pulpitis (RP) and symptomatic irreversible pulpitis (SIRP) caused by dental caries. Read More

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Do Oral and Maxillofacial Surgeons Prescribe More Opioids After Third Molar Removal for Patients with Substance Use History?

J Oral Maxillofac Surg 2021 Jun 8. Epub 2021 Jun 8.

Resident, Department of Oral and Maxillofacial Surgery, University of Washington School of Dentistry, Seattle, WA; Department of Oral and Maxillofacial Surgery, University of Washington School of Dentistry, Seattle, WA.

Purpose: Oral and maxillofacial surgeons (OMSs) must manage post-operative pain control for patients who take illicit substances. The purpose of this study was to measure and compare the amount of opioid prescribing between patients with and without self-reported substance use history (SUH) by OMSs after third molar (M3) removal.

Materials And Methods: The investigators implemented a retrospective cohort study and enrolled a sample of subjects who had M3 removal between January 1, 2019 through December 31, 2019. Read More

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Dental Malocclusion and Its Relation to the Podal System.

Front Pediatr 2021 22;9:654229. Epub 2021 Jun 22.

Department of Stomatology, Faculty of Dentistry, University of Seville, Seville, Spain.

This study analyzes the possibility that Stomatognathic and Postural systems are related by muscle chains. Malocclusion may influence the posture, contact between the foot and the ground, center of mass, footprint or vice-versa. This study aimed to verify whether there is a relationship between dental occlusion and podal system. Read More

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Conservative Approach of a Dentigerous Cyst.

Case Rep Dent 2021 18;2021:5514923. Epub 2021 Jun 18.

Pediatric and Preventive Dentistry Department, Faculty of Dental Medicine of Monastir, Laboratory of Biological, Clinical and Dento-Facial Approach, University of Monastir, Monastir, Tunisia.

Dentigerous cysts (DC) are the most common odontogenic cystic lesions of inflammatory origin occurring in children. These lesions can be treated by enucleation with or without related impacted teeth or marsupialization/decompression. The latter procedures have been used successfully for many years, but decompression is increasingly recommended in children because of its good outcomes and the preservation of the developing tooth. Read More

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In-vivo-wear in composite and ceramic full mouth rehabilitations over 3 years.

Sci Rep 2021 Jul 7;11(1):14056. Epub 2021 Jul 7.

Department of Prosthodontics, Goethe University, Center for Dentistry and Oral Medicine (Carolinum), Theodor-Stern-Kai 7, 60596, Frankfurt am Main, Germany.

The aim of this study was to quantify and to compare the wear rates of premolar (PM) and molar (M) restorations of lithium disilicate ceramic (LS2) and an experimental CAD/CAM polymer (COMP) in cases of complex rehabilitations with changes in vertical dimension of occlusion (VDO). Twelve patients with severe tooth wear underwent prosthetic rehabilitation, restoring the VDO with antagonistic occlusal coverage restorations either out of LS2 (n = 6 patients, n = 16 posterior restorations/patient; N = 96 restorations/year) or COMP (n = 6 patients; n = 16 posterior restorations/patient; N = 96 restorations/year). Data was obtained by digitalization of plaster casts with a laboratory scanner at annual recalls (350 ± 86 days; 755 ± 92 days; 1102 ± 97 days). Read More

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Prevalence of tooth loss and associated factors in institutionalized adolescents: a cross-sectional study.

Cien Saude Colet 2021 Jul 11;26(7):2635-2642. Epub 2021 Apr 11.

Departamento de Periodontologia, Faculdade de Odontologia, Universidade Federal Pelotas (UFPel). R. Gonçalves Chaves 457, Centro. 96015-560 Pelotas RS Brasil.

This study aimed to assess the prevalence of tooth loss and associated factors in institutionalized adolescents. This cross-sectional study included 68 male adolescents incarcerated from Socio-Educational Assistance Center (CASE) aged between 15 and 19 years. Questionnaires were applied individually to assess sociodemographical, economical, medical, behavioral and oral health self-perception variables. Read More

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[Openbite in hyperdivergent adult: Le Fort I impaction versus maxillary molar intrusion using bone anchorage. A literature review.]

Orthod Fr 2021 Jun;92(2):215-238

Université Claude Bernard Lyon 1, Département d'ODF, Faculté d'Odontologie, rue Guillaume Paradin, 69372 Lyon cedex 08, France, Unité Fonctionnelle d'ODF, Centre de Traitements Dentaires, Hospices Civils de Lyon, 6-8 place Depéret, 69365 Lyon cedex 03, France.

The objective of this study is to compare, based on literature review, the short and long-term efficiency of the correction of anterior openbite in hyperdivergent adults by orthodontics combined with maxillary molar intrusion using temporary anchorage devices (group A), versus maxillary surgical impaction (group B). The articles were retreived from five databases (last update in May 2020). Data selection and extraction are done independently by two reviewers, then validated and gathered after consensus to limit bias. Read More

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