6,518 results match your criteria healing mandibular


Clinical and radiographic performance of self-locking conical connection implants in the posterior mandible: five-year results of a two-centre prospective study.

Clin Oral Implants Res 2021 Jun 11. Epub 2021 Jun 11.

Department of Oral and Maxillofacial Surgery, Johannes Gutenberg-University, Medical Centre, Augustusplatz 2, D-55131, Mainz, Germany.

Objective: This prospective study aims to assess the 5-year clinical performance of implants with internal conical connection and platform-switched abutments in the posterior mandible.

Material And Methods: Healthy adults missing at least two teeth in the posterior mandible and with a natural tooth mesial to the implant site received two or three adjacent implants. After a transmucosal healing period single crown restorations were cemented on platform-switched abutments. Read More

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Clinical Application of PEEK as a Provisional Fixed Dental Prosthesis Retained by Reciprocated Guide Surfaces of Healing Abutments During Dental Implant Treatment.

Int J Oral Maxillofac Implants 2021 May-Jun;36(3):581-586

Purpose: The aim of this study was to evaluate the clinical use of a high-performance polymer, polyether ether ketone (PEEK), as a material for use in provisional fixed dental prostheses (FDPs) that can be retained by reciprocated guide surfaces of hexagonal-shaped healing abutments during dental implant treatment.

Materials And Methods: Patients requiring teeth replacement with dental implants for partially and fully edentulous cases in the maxilla and mandible were included. The provisional FDP was fabricated with hex castable copings and PEEK granules using the lost wax technique. Read More

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Invasive Outbreak at a Pediatric Dental Clinic.

Open Forum Infect Dis 2021 Jun 15;8(6):ofab165. Epub 2021 Apr 15.

Disease Control and Epidemiology, Orange County Health Care Agency, Santa Ana, California, USA.

Background: species, specifically and (MABs), are known to contaminate water systems and are uncommon causes of health care-associated infection, but morbidity can be significant and treatment complex.

Methods: Odontogenic MAB infections occurred in patients following pulpotomy procedures at dental clinic A from 1 January to 6 September 2016. We identified confirmed and probable cases using culture data, imaging, pathology results, and surgical findings. Read More

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[Comparison of apical root resorption of maxillary incisors between adolescents and adults after orthodontic treatment].

Shanghai Kou Qiang Yi Xue 2021 Apr;30(2):187-190

Department of Stomatology, Inner Mongolia Chifeng College Affiliated Hospital. Chifeng 024000, Inner Mongolia Autonomous Region, China.

Purpose: To compare apical root resorption of maxillary incisors between adolescents and adults after orthodontic treatment.

Methods: Patients receiving orthodontic treatment in Affiliated Hospital of Chifeng University from May 2014 to August 2016 were enrolled, and divided into two age groups: adolescent group (32) and adult group (36). The included subjects received orthodontic fixed appliance treatment with straight-wire technique combined with Hawley type retainer for one year. Read More

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The influence of flap design on patients' experiencing pain, swelling, and trismus after mandibular third molar surgery: a scoping systematic review.

J Appl Oral Sci 2021 4;29:e20200932. Epub 2021 Jun 4.

Campania University Luigi Vanvitelli, Multidisciplinary Department of Medical, Surgical and Dental sciences, Naples, Italy.

Third molar removal surgery usually comes accompanied by postoperative discomfort, which could be influenced by the surgical approach chosen. This scoping systematic review aimed at compiling the available evidence focused on the influence of flap design, including envelope flap (EF), triangular flap (TF), and modified triangular flap (MTF), on postoperative pain, swelling, and trismus, as primary outcome measures, and any result mentioning healing promotion or delay, as secondary outcome measure, after mandibular third molar extraction surgery. An electronic search, complemented by a manual search, of articles published from 1999 to 2020 was conducted in the Medline (PubMed), EMBASE and Web of Science databases including human randomized controlled trials, prospective, and retrospective studies with at least 15 patients. Read More

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Dental implant placement with inferior alveolar nerve repositioning in severely resorbed mandibles: a retrospective multicenter study of implant success and survival rates, and lower lip sensory disturbances.

Int J Implant Dent 2021 Jun 9;7(1):44. Epub 2021 Jun 9.

S'OS Orthognathic Surgery, Vytenio 22-201, Vilnius, Lithuania.

Background: The purpose of this study was to analyze medium-to-long-term implant success and survival rates, and lower lip sensory disturbance after placement of dental implants with simultaneous inferior alveolar nerve (IAN) repositioning.

Methods: Fifteen patients (3 men, 12 women) treated in two centers were included in this retrospective study. The ages of the participants ranged from 19 to 68. Read More

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Healing of a large avulsed mandibular bony segment: report of a unique case.

Int J Oral Maxillofac Surg 2021 Jun 5. Epub 2021 Jun 5.

Department of Oral and Maxillofacial Surgery, King Edward Medical University/Mayo Hospital, Lahore, Pakistan.

This case report puts an emphasis on retaining and re-fixing any avulsed bony segments in the maxillofacial region and maintaining the periosteal layer whenever possible, especially in young patients. Adequate bony fixation and watertight soft tissue closure are vital components for bone healing. The healing potential of facial bones is much higher as compared to the long bones, due to the superior blood supply. Read More

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Alveolar ridge regeneration in two-wall-damaged extraction sockets of an in vivo experimental model.

Clin Oral Implants Res 2021 Jun 8. Epub 2021 Jun 8.

Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul, South Korea.

Aim: To determine the healing outcome following grafting with deproteinized porcine bone mineral (DPBM) with or without collagen membrane coverage in two-wall (both buccal and lingual)-damaged extraction sockets.

Materials And Methods: Distal roots of three mandibular premolars in six beagle dogs were extracted, and the whole buccal and lingual bony walls were surgically removed. Three treatment protocols were then applied according to the following group allocation: no graft (None), grafting DPBM (BG), and grafting DPBM with coverage by a collagen membrane (BG+M). Read More

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A twostep supraclavicular flap method in head and neck reconstruction for refractory osteoradionecrosis.

J Stomatol Oral Maxillofac Surg 2021 Jun 4. Epub 2021 Jun 4.

Gustave Roussy, Paris-Saclay University, Department of Plastic Surgery, Villejuif, F-94805, France.

Techniques of reconstructive surgery of the head and neck region have existed since Antiquity, with the pedicled forehead flap of Susruta as a reference. These methods are constantly evolving, with the introduction of free flaps in the 1980s, and more recently new technologies such as CAD-CAM. However, the surgical management of patients treated by radiotherapy for upper airway cancers remains a challenge in terms of functional and aesthetic results. Read More

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Impaired Callus Formation in Pathological Mandibular Fractures in Medication-Related Osteonecrosis of the Jaw and Osteoradionecrosis.

J Oral Maxillofac Surg 2021 Apr 28. Epub 2021 Apr 28.

Oral and Maxillofacial Surgery - Imaging and Pathology Research Group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Department of Oral & Maxillofacial Surgery, University of Leuven, Leuven, Belgium.

Purpose: Nonsurgical treatment of mandibular fractures secondary to medication-related osteonecrosis of the jaw (MRONJ) or osteoradionecrosis (ORN) mostly results in nonunion, whereas nonsurgical fracture treatment of atrophic fractures can achieve favorable results in selected cases. The aim of this study was to compare callus formation in pathological mandibular fractures due to MRONJ, ORN, or extreme mandibular atrophy.

Methods: A retrospective cohort study reviewing the medical records of all MRONJ-, ORN-, or atrophy-related fractures treated at the departments of maxillofacial surgery in the Leuven or Lille university hospitals between 2010 and 2019 was undertaken. Read More

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Evaluation of the detectability of early mandible fracture healing findings in terms of vitality aspect by using micro-CT technology in postmortem interval.

Leg Med (Tokyo) 2021 Jun 1;52:101914. Epub 2021 Jun 1.

Ankara University, Faculty of Dentistry, Department of DentoMaxillofacial Radiology, Ankara, Turkey.

The purpose of the present study was to investigate the vitality aspect of mandibular fractures using micro-CT in the analysis of bone mineral density and other bone microstructure trabecular parameters in the postmortem interval. This study included 72 female Wistar rats. In the study groups, the rats' mandibles were first fractured and after three days of living, the rats were sacrificed. Read More

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"Migratory Kerato osteomyelitis" - A refractory lesion of the mandible: A pathologist's and surgeon's dilemma!!

J Oral Maxillofac Pathol 2021 Mar 19;25(Suppl 1):S61-S67. Epub 2021 Mar 19.

Army Dental Centre (R&R), New Delhi, India.

A 62 year old female patient presented with a chief complaint of non healing extraction socket in the lower left back teeth region. She underwent extraction of 37 at a private clinic following which an ulceroinfiltrative lesion developed at operated side. Multiple biopsies from the lesion were inconclusive. Read More

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Decompression effects on bone healing in rat mandible osteomyelitis.

Sci Rep 2021 Jun 3;11(1):11673. Epub 2021 Jun 3.

Department of Oral and Maxillofacial Surgery, Dental Research Institute, School of Dentistry, Seoul National University, 101 Daehak-ro, Jongno-gu, Seoul, 03080, Korea.

Osteomyelitis (OM) of the jaw is usually caused by a chronic odontogenic infection. Decompression is the release the intraluminal pressure in the cystic cavity allowing gradual bone growth from the periphery. The aim of this study was to analyze the effectiveness of decompression in an OM jaw model. Read More

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Identification of malocclusion risk factors after closed treatment of condylar fractures using a novel three-dimensional computed tomography approach.

J Oral Sci 2021 Jun 2. Epub 2021 Jun 2.

Department of Dentistry and Oral Surgery, Tokyo Metropolitan Hiroo Hospital.

The condyle is the most common site of mandibular fracture. In the present study, an attempt was made to utilize three-dimensional computed tomography (3D-CT) images to evaluate mandibular condyle fractures and identify prognostic indicators of malocclusion after closed treatment. Accurate morphometric measurements were performed using 3D-CT images obtained before trauma, after trauma, and after healing. Read More

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Influence of PRGF and PRF on postextractive alveolus regeneration: a randomised controlled trial.

Quintessence Int 2021 Jun 2;0(0). Epub 2021 Jun 2.

Objectives: Healing of postextraction alveolus is a complex process that involves soft and hard tissue regeneration. Pain, swelling, difficulty in opening the mouth, delayed bone tissue healing, alveolitis, and horizontal or vertical resorption of bone tissue are the main problems that impact on consequent treatment. Blood concentrates PRGF (plasma rich in growth factors) and PRF (platelet-rich fibrin), which are rich in growth factors, create better conditions for postextraction alveolus healing, enhance quality of soft tissues and bone regeneration, and decrease pain. Read More

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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

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Dynamics of Matrix Metalloproteinase-1 and -8 Secretion in Gingival Crevicular Fluid after Gingival Recession Therapy via MCAT with Either Subepithelial Connective Tissue Graft or Collagen Matrix.

Biomolecules 2021 May 14;11(5). Epub 2021 May 14.

Department of Periodontal and Oral Mucosa Diseases, Medical University of Białystok, ul. aszyngtona 13, 15-269 Białystok, Poland.

Objectives: The objective of this study was to determine and estimate the changing levels of matrix metalloproteinases 1 and 8 (MMP-1 and MMP-8) in GCF at consecutive stages of healing after root coverage procedure via modified coronally advanced tunnel (MCAT) combined with either sub-epithelial connective tissue graft (SCTG) or collagen matrix (CM) and also to relate those changes to clinical outcomes of both therapeutic approaches.

Materials And Methods: The study involved 20 patients with a total of 91 recessions. Those on one side of the mandible received MCAT plus CM while the contralateral ones MCAT plus SCTG. Read More

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Platelet-Derived Growth Factor-Modulated Guided Tissue Regeneration with a Bioresorbable Membrane in Class III Furcation Defects: A Histometric Study in the Monkey.

Materials (Basel) 2021 May 6;14(9). Epub 2021 May 6.

Medical Center-University of Freiburg, Center for Dental Medicine, Department of Prosthetic Dentistry, Faculty of Medicine, University of Freiburg, Hugstetter Str. 55, 79106 Freiburg, Germany.

It was the aim of this study to histometrically evaluate guided tissue regeneration (bioresorbable membrane plus bone mineral) (GTR) with or without platelet-derived growth factor (PDGF) in two different types of class III furcation defects (small keyhole defects and horizonal defects) in monkeys. In six cynomolgus monkeys, two types of class III furcation defects were created and allowed to chronify for 5 months in mandibular first and second molars. After a hygiene program the molars were assigned to GTR group (collagen membrane plus bovine bone mineral), PDGF group (collagen membrane plus bovine bone mineral plus PDGF), or negative control group (flap reposition only). Read More

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Effect of apical third enlargement to different preparation sizes and tapers on post-operative pain and outcome of primary endodontic treatment: a prospective randomized clinical trial.

J Endod 2021 May 28. Epub 2021 May 28.

Department of Conservative Dentistry and Endodontics, Dr. Ziauddin Ahmad Dental College, Aligarh Muslim University, Aligarh, 202001, India.

Aim: To evaluate the effect of apical preparation size and taper on post-operative pain and healing after primary endodontic treatment.

Method: 120 patients having asymptomatic mandibular molars with radiographic evidence of periapical pathology and with a Periapical Index (PAI) Score ≥ 3, were randomly assigned to two groups, Group 1 and 2, based on apical enlargement to 2 and 3 sizes larger than the initial apical binding file (IABF) respectively. Each group was further divided into subgroups A & B depending on the apical enlargement taper of 4% and 6%, respectively. Read More

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A Retrospective Analysis of Treatment Outcomes Following Guided Bone Regeneration at Sites Exhibiting Severe Alveolar Ridge Atrophy.

J Craniofac Surg 2021 May 25. Epub 2021 May 25.

Department of Oral and Maxillofacial Sciences Department of Radiological, Oncological and Pathological Sciences, "Sapienza" University of Rome, Rome, Italy Department of Interdisciplinary Dentistry, Pomeranian Medical University in Szczecin, Poland.

Abstract: Severely atrophic alveolar ridges represent a great challenge for implant-prosthetic rehabilitations. The aim of this study was to clinically and histologically evaluate horizontal and vertical bone gain, as well as implant survival/success rate after guided bone regeneration (GBR) for the reconstruction of large bone defects. Fourteen subjects (7 males and 7 females; mean age: 48. Read More

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Establishment of a C57BL/6 Mandibular Critical-Size Bone Defect Model.

J Craniofac Surg 2021 May 28. Epub 2021 May 28.

Department of Orthodontics, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, College of Stomatology, Shanghai Jiao Tong University, National Center for Stomatology, National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology, Shanghai, China.

Purpose: The goal of this study was to identify bone defects of critical size in C57BL/6 mouse mandibles.

Materials And Methods: Twenty-four male mice were included in this study. All mice underwent surgeries on their left mandibles. Read More

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Effects of infrared light laser therapy in vivo and in vitro periodontitis models.

J Periodontol 2021 May 29. Epub 2021 May 29.

Institute of Science and Technology, Federal University of São Paulo, São José dos Campos, São Paulo, Brazil.

Background: This study evaluated the effects of infrared light laser therapy (ILLT) on ligature-induced periodontitis in rats using micro-computed tomography (micro-CT), histology, fibroblast migration, and viability analysis.

Methods: Forty-eight rats were randomly distributed into three groups: control (no periodontitis), PDC (periodontitis without laser therapy), and PD+L (periodontitis with laser therapy). Periodontitis was induced by ligature placement for four weeks. Read More

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Maxillomandibular osteotomy healing in a patient with hypophosphatemic rickets.

Int J Oral Maxillofac Surg 2021 May 25. Epub 2021 May 25.

Oral and Maxillofacial Surgery, NYC Health + Hospitals/Kings County, Brooklyn, NY, USA. Electronic address:

Hypophosphatemic rickets is a hereditary disease of childhood that affects bone metabolism. Patients with this disease can have poor bony healing at growth centers due to impaired mineralization of the cartilaginous bone plates. The orthopedic literature has shown appropriate long bone healing in patients with rickets who are undergoing concurrent medical management. Read More

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Osseodensification effect on implants primary and secondary stability: Multicenter controlled clinical trial.

Clin Implant Dent Relat Res 2021 May 27. Epub 2021 May 27.

Department of Prosthodontics and Periodontology, University of Sao Paulo Bauru School of Dentistry, Bauru, Sao Paulo, Brazil.

Background: Osseodensification (OD) has shown to improve implant stability; however, the influences of implant design, dimensions, and surgical site characteristics are unknown.

Purpose: To compare the insertion torque (IT) and temporal implant stability quotients (ISQ) of implants placed via OD or subtractive drilling (SD).

Materials And Methods: This multicenter controlled clinical trial enrolled 56 patients, whom were in need of at least 2 implants (n = 150 implants). Read More

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Management of large inflammatory dentigerous cysts adapted to the general condition of the patient: Two case reports.

Exp Ther Med 2021 Jul 12;22(1):750. Epub 2021 May 12.

Department of Pedodontics, 'Carol Davila' University of Medicine and Pharmacy, Faculty of Dental Medicine, 010221 Bucharest, Romania.

Dentigerous cysts may be of developmental or inflammatory origin. The latter occur in unerupted permanent teeth as a result of inflammation from a preceding non-vital primary tooth or from another source spreading to involve the tooth follicle. This report presents two clinical cases of children with dentigerous cysts of inflammatory origin. Read More

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Biomechanical Assessment of the Validity of Sheep as a Preclinical Model for Testing Mandibular Fracture Fixation Devices.

Front Bioeng Biotechnol 2021 6;9:672176. Epub 2021 May 6.

Julius Wolff Institute, Charité - Universitätsmedizin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin and Berlin Institute of Health, Berlin, Germany.

Mandibular fracture fixation and reconstruction are usually performed using titanium plates and screws, however, there is a need to improve current fixation techniques. Animal models represent an important step for the testing of new designs and materials. However, the validity of those preclinical models in terms of implant biomechanics remains largely unknown. Read More

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Comparison of lag screws and double Y-shaped miniplates in the fixation of anterior mandibular fractures.

Authors:
Lydia Melek

World J Methodol 2021 May 20;11(3):88-94. Epub 2021 May 20.

Department of Oral and Maxillofacial Surgery, Alexandria University, Alexandria 21411, Egypt.

Background: Mandibular fractures constitute about 80.79% of maxillofacial injuries in Alexandria University, either as isolated mandibular fractures or as a part of panfacial fractures. The combination of symphyseal and parasymphyseal fractures represent 47. Read More

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Extraoral approach to a bilateral unfavourable mandibular fracture under local anaesthesia: A case report.

Gerodontology 2021 Jun;38(2):228-231

Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Akdeniz University, Antalya, Turkey.

Objective: To present a feasible treatment method for fractures of severely atrophic mandibles in high-risk patients undergoing general anaesthesia (GA).

Case Report: A 77-year-old man presented with bilateral unfavourable fractures in an atrophic mandible. Pre-anaesthetic consultation revealed that the patient was at high risk for GA due to significant medical comorbid conditions of the patient, such as advanced age, chronic obstructive respiratory disease, diabetes mellitus and atherosclerosis. Read More

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Application of a collagen scaffold saturated with platelet-rich plasma in prevention of bisphosphonate-related osteonecrosis of the jaw in the rat animal model.

Heliyon 2021 May 1;7(5):e06930. Epub 2021 May 1.

Craniomaxillofacial Research Center, Tehran University of Medical Sciences, Tehran, Iran.

Background: Among the myriad adverse events of drugs in the oral cavity, Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is one of the most detrimental drug reactions that have ever been known.

Objective: This study was aimed to investigate the success of applying collagen scaffold alone and platelet-rich plasma (PRP)+collagen scaffold in prevention of zoledronic acid-induced BRONJ in the rat.

Methods: A total of 17 male Wistar-rats were treated with 4 weekly doses of zoledronic acid. Read More

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Comparison of conventional and digital workflows for implant-supported screw-retained zirconia FPD bars: Fit and cement gap evaluation using SEM analysis.

Int J Oral Implantol (Berl) 2021 May;14(2):199-210

Purpose: To assess the fit and cement gap of fixed partial dentures supported by two implants made using conventional and digital workflows.

Materials And Methods: Patients requiring fixed partial dentures supported by two implants were included in the study. Forty-eight zirconia fixed partial denture bars supported by two implants (AnyOne, MegaGen, Daegu, South Korea) were produced using a conventional (n = 24, group C) and digital (n = 24, group D) workflow. Read More

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