1,227 results match your criteria ankylosed teeth


Early replacement of ankylosed first molar via mesial root movement facilitates bone formation and normal eruption of the third molar.

Angle Orthod 2021 Mar 22. Epub 2021 Mar 22.

Ankylosis of a molar during active growth leads to a significant vertical bone defect, extrusion of the opposing molar, and inclination of adjacent teeth. Treatment timing is an essential factor for the patient's quality of life. Early extraction of the ankylosed molar and protraction of the second molar is challenging because of the difficulty of tooth movement and the uncertainty of the normal eruption of the third molar. Read More

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The impact of platelet-rich fibrin (PRF) on delayed tooth replantation: A preliminary animal study.

Aust Endod J 2021 Mar 2. Epub 2021 Mar 2.

Department of Orthodontics, College of Dental Medicine, Nova Southeastern University, Fort Lauderdale, Florida, USA.

The aim of this study was to evaluate the effect of platelet-rich fibrin (PRF) placed in delayed replantation of mature extracted teeth. Sixteen intentionally extracted teeth in two mature beagle dogs were selected. In one quadrant of each jaw, the extraction sockets were filled with PRF prior to replantation, and the other quadrant served as control without PRF. Read More

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Cell-Based Therapy for Tooth Replantation Following Avulsion: A Systematic Review.

Tissue Eng Part B Rev 2021 Mar 31. Epub 2021 Mar 31.

College of Dental Medicine, QU Health, Qatar University, Doha, Qatar.

The management of avulsed teeth undergoing delayed replantation remains a clinical challenge as there are currently no effective interventions that can improve periodontal healing and prevent replacement root resorption. While several preclinical studies have reported varied success using cell-based tissue engineering to improve periodontal healing, a consensus is required before further clinical translation. Therefore, this systematic review seeks to evaluate the efficacy of cell-based therapy in promoting periodontal healing following delayed replantation in animal models. Read More

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The risks of ankylosis of 89 avulsed human teeth stored in saliva prior to replantation-A re-evaluation of a long-term clinical study.

Dent Traumatol 2021 Feb 1. Epub 2021 Feb 1.

Department of Oral and Maxillofacial Surgery and Medicine, Faculty of Odontology, Malmö University, Malmö, Sweden.

Background/aim: The survival of an avulsed tooth highly depends on the emergency management. The aim of this study was to evaluate the risk of ankylosis for avulsed human teeth stored in saliva preceded by various dry storage conditions prior to replantation.

Material And Methods: Data include 74 patients (54 male and 20 female) with 89 avulsed and replanted teeth (16 immature teeth, 73 mature teeth). Read More

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February 2021

Long-Term Retention of Avulsed Maxillary Incisors with Replacement Root Resorption: A 9-Year Follow-Up.

Case Rep Dent 2021 11;2021:8872859. Epub 2021 Jan 11.

Department of Conservative Dentistry, College of Dentistry, Dankook University, Cheonan, Republic of Korea.

The purpose of this case report is to present a case of long-term retention of avulsed upper maxillary incisors with external replacement root resorption in a 15-year-old boy. The avulsed teeth, #11, 21, and 22, were stored under dry conditions for 40 min and replanted. Endodontic treatment was initiated after two weeks, and the nonrigid splint was removed after 3. Read More

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January 2021

Diagnosis of alveolodental ankylosis in unerupted canines: one of the answers to why the canine does not come.

Dental Press J Orthod 2020 Nov-Dec;25(6):19-25

Faculdade São Leopoldo Mandic, Departamento de Ortodontia (Campinas/SP, Brazil).

Introduction: Teeth frequently fail to erupt and situations arise that prevent the canines from reaching the occlusal plane.

Objective: Discourse about the three situations in which the canine does not reach the occlusal plane, and remains unerupted; and at the same time, point how to make a safe diagnosis of alveolodental ankylosis - one of the three causes -, based on tomography.

Conclusions: Ankylosis occurs in impacted teeth by atrophy of the periodontal ligament, including the epithelial rests of Malassez. Read More

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January 2021

Computer-guided implant placement in contact with root remnants in the esthetic area.

Quintessence Int 2021 ;52(2):132-137

The extraction of a tooth with root resorption can be a complicated procedure and can result in the removal of a significant amount of alveolar bone. In the anterior maxilla, esthetic rehabilitation of damaged sites with implant-supported crown could require multiple surgeries. Patients often ask for an alternative, and minimally invasive treatments are generally preferred. Read More

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January 2021

Ankylosed Primary Molar in a Japanese Child with Hypophosphatasia.

Dent J (Basel) 2020 Dec 29;9(1). Epub 2020 Dec 29.

Department of Pediatric Dentistry, Osaka University Graduate School of Dentistry, Osaka 565-0871, Japan.

Hypophosphatasia (HPP) is a rare genetic disorder; affected patients may experience early exfoliation of primary teeth, especially anterior teeth. However, there have been few reports regarding longitudinal follow-up for primary teeth, especially posterior teeth, until their replacement with permanent teeth. Here, we describe a patient with HPP who underwent follow-up from 1 to 9 years of age. Read More

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December 2020

Geomorphologic study of human tooth root surfaces following simulated avulsion by scanning electron microscopy.

Dent Traumatol 2020 Dec 26. Epub 2020 Dec 26.

Emergency Department, Beijing Stomatological Hospital and School of Stomatology, Capital Medical University, Beijing, China.

Background/aims: Tooth avulsion is the most severe traumatic tooth injury. Immediate replantation after avulsion provides the highest success rate, whereas delayed replantation with dehydration for >1 h always results in ankylosis, replacement resorption, and eventual tooth loss. The aim of this study was to investigate the geomorphologic change of ultrastructure on tooth root surfaces due to dehydration. Read More

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December 2020

Ablation of Pyrophosphate Regulators Promotes Periodontal Regeneration.

J Dent Res 2020 Dec 24:22034520981854. Epub 2020 Dec 24.

Laboratory of Oral Connective Tissue Biology, National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), National Institutes of Health (NIH), Bethesda, MD, USA.

Biomineralization is regulated by inorganic pyrophosphate (PP), a potent physiological inhibitor of hydroxyapatite crystal growth. Progressive ankylosis protein (ANK) and ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1) act to increase local extracellular levels of PP, inhibiting mineralization. The periodontal complex includes 2 mineralized tissues, cementum and alveolar bone (AB), both essential for tooth attachment. Read More

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December 2020

Jens Ove Andreasen, 1935-2020 Father of Dental Traumatology.

Dent Traumatol 2021 Feb 22;37(1):4-16. Epub 2020 Dec 22.

University Hospital Copenhagen, Copenhagen, Denmark.

The life and professional contributions to dental traumatology of Dr. Jens Ove Andreasen are described in terms of his research, writing, teaching, and leadership. Read More

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February 2021

Coordinated labio-lingual asymmetries in dental and bone development create a symmetrical acrodont dentition.

Sci Rep 2020 12 16;10(1):22040. Epub 2020 Dec 16.

Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic.

Organs throughout the body develop both asymmetrically and symmetrically. Here, we assess how symmetrical teeth in reptiles can be created from asymmetrical tooth germs. Teeth of lepidosaurian reptiles are mostly anchored to the jaw bones by pleurodont ankylosis, where the tooth is held in place on the labial side only. Read More

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December 2020

Regenerative endodontic therapy: a follow-up of 47 anterior traumatised teeth.

Eur Arch Paediatr Dent 2020 Nov 27. Epub 2020 Nov 27.

Paediatric REsearch Project (PREP), Barneveld, Nederland.

Purpose: To collect long-term survival data in anterior traumatised teeth on the outcome of Regenerative Endodontic Treatments (RET) with a network of dentists working in different clinics to overcome the problem of anecdotical evidence.

Methods: The seven dentists from Paediatric REsearch Project (PREP) performed RET treatments following the same protocol in five different secondary dental care clinics in the Netherlands. Treatment resulting in pain, apical problems, sinus tracts, resorption or fracture were considered as failure of treatment. Read More

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November 2020

Mouthguard Use Effect on the Biomechanical Response of an Ankylosed Maxillary Central Incisor during a Traumatic Impact: A 3-Dimensional Finite Element Analysis.

Life (Basel) 2020 Nov 20;10(11). Epub 2020 Nov 20.

Institute of Science and Technology, São Paulo State University (Unesp), São José dos Campos, São Paulo 12220690, Brazil.

(1) Background: Trauma is a very common experience in contact sports; however, there is an absence of data regarding the effect of athletes wearing mouthguards (MG) associated with ankylosed maxillary central incisor during a traumatic impact. (2) Methods: To evaluate the stress distribution in the bone and teeth in this situation, models of maxillary central incisor were created containing cortical bone, trabecular bone, soft tissue, root dentin, enamel, periodontal ligament, and antagonist teeth were modeled. One model received a MG with 4-mm thickness. Read More

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November 2020

Orthodontic treatment of open bite involved in diffuse hypercementosis: A case report.

J Am Dent Assoc 2021 02 15;152(2):166-175. Epub 2020 Nov 15.

Background: Open bite is considered one of the most complicated malocclusions in orthodontic treatment. In this study, the authors successfully treated total open bite involved in hypercementosis using orthodontic miniscrews.

Case Description: A woman aged 25 years 8 months had total open bite. Read More

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February 2021

Periodontal plastic surgery for the management of an ankylosed permanent maxillary lateral incisor: A clinical report with 5-year follow-up.

J Prosthet Dent 2020 Nov 12. Epub 2020 Nov 12.

Professor, Department of Orthodontics, National Autonomous University of Mexico UNAM, Mexico City, Mexico; Private practice, Medica Sur Hospital, Mexico City, Mexico.

Anterior maxillary tooth ankylosis disturbs the development of the alveolar bone process, leading to discrepancies between the cervical gingival margin and incisal edge position of the affected tooth, and therefore, the esthetics is compromised. Proposed treatments in adults and growing patients have been used successfully, but they have disadvantages and are contraindicated in some circumstances. This article proposes an alternative treatment for an ankylosed permanent maxillary anterior tooth with a slow replacement resorption rate in an adult patient, for whom a combination of a periodontal plastic surgery procedure and a fixed dental prosthesis was used to correct the esthetics. Read More

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November 2020

Effects of different splinting times on surgically extruded teeth with a crown-root fracture: A randomized controlled trial.

Dent Traumatol 2021 Apr 4;37(2):264-274. Epub 2020 Dec 4.

Pediatric Dentistry Department, Faculty of Dentistry, Cairo University, Cairo, Egypt.

Background/aim: Clinical studies evaluating the splinting time for surgically extruded teeth with crown-root fractures are lacking. The aim of this study was to compare 2-week splinting versus functional splinting times after surgical extrusion.

Material And Methods: Children aged 8-13 years who presented with crown-root fractures were included. Read More

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What can we do with a dental avulsion? A multidisciplinary Clinical Protocol.

J Clin Exp Dent 2020 Oct 1;12(10):e991-e998. Epub 2020 Oct 1.

Adjunct Professor, Department of Stomatology, Faculty of Medicine and Dentistry, University of Valencia, Valencia, Spain.

Purpose: The aim of this case report was to explain a multidisciplinary and conservative approach carrying out the replantation of an avulsed closed apex central incisor stored in dry conditions for a 16-hour period from the moment of trauma.

Case Report: This report describes a case of a 28 year-old male who suffered contusion of the upper lip, avulsion of right upper central incisor, enamel cracks after trauma of left upper central incisor and upper left lateral incisor crown fracture due to an accident. Avulsed tooth was dry stored and it was replanted 16h after the trauma. Read More

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October 2020

[Primary failure of eruption: combined vision between paediatric dentist and orthodontist].

Orthod Fr 2020 06;91(1-2):47-55

Université de Lille, Place de Verdun, 59000 Lille, France.

In their daily practice, orthodontists and pedo- dontists have a common aim which is to ensure a functional establishment of the permanent denture. Due to the increase of eruption defects/failures with no clear obstacles, the doctor may encounter some difficulties to elaborate a diagnosis or even feels helpless when in need to define and put in motion a correct therapeutic strategy. The primary failure of eruption (PFE) is an extensively studied disease that has to be distinguished from an ankylosis during the diagnosis to improve the patient care. Read More

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Pixel gray measurement for the diagnosis of dental ankylosis in cone beam computed tomography images.

Oral Surg Oral Med Oral Pathol Oral Radiol 2020 Aug 29. Epub 2020 Aug 29.

Department of Stomatology (Oral Pathology), School of Dentistry, Federal University of Goiás, Goiânia, Brazil. Electronic address:

Objective: The aim of this study was to investigate dental ankylosis in unerupted or partially erupted teeth by using cone beam computed tomography (CBCT) to quantify pixel intensity.

Study Design: In total, 157 CBCT images from individuals with a total of 206 unerupted or partially erupted teeth with suspected ankylosis were evaluated. CBCT images were analyzed for the presence of ankylosis by 2 oral radiologists by quantifying mean pixel intensities (analysis 1) and variations in pixel intensities (analysis 2) in normal and ankylosed regions. Read More

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Miniscrew-assisted single-tooth distraction osteogenesis to align an ankylosed infraoccluded maxillary central incisor: A case report.

J Orthod 2020 Dec 22;47(4):345-353. Epub 2020 Sep 22.

Department of Periodontics, Dental School, Islamic Azad University of Borujerd, Borujerd, Iran.

The ankylosis of permanent incisors is usually caused by trauma. In a growing patient, the ankylosed tooth fails to move along with the vertical growth of the remaining alveolar process, which results in an infraoccluded tooth, gingival margin disharmony and unaesthetic smile.This case report presents an 23-year-old female patient whose maxillary right central incisor (tooth number 11) had been traumatised eight years earlier. Read More

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December 2020

Lower incisor extraction therapy in a complex case with an ankylosed tooth in an adult patient: A case report.

Int Orthod 2020 Dec 15;18(4):850-862. Epub 2020 Sep 15.

University of Ferrara, postgraduate school of orthodontics, Ferrara, Italy.

This case report describes a successful orthodontic therapy of an adult female treated by mandibular central incisor extraction and vestibular fixed appliances. The patient presented a skeletal Class I with normodivergent facial pattern, Class II subdivision dental relationship, extremely deep Curve of Spee and severe overbite. Moreover, during the treatment, the upper left first molar does not respond to orthodontic forces due to tooth ankylosis, augmenting the difficulty of this case. Read More

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December 2020

Retrospective Evaluation of Immediate Impacted Third Molars Autotransplantation After Extractions of Mandibular First and/or Second Molars With Chronic Periapical Lesions.

J Oral Maxillofac Surg 2021 Jan 19;79(1):37-48. Epub 2020 Aug 19.

Resident, Department of Oral and Maxillofacial Surgery, Marmara University, School of Dentistry, Istanbul, Turkey.

Purpose: To evaluate the success rate of simultaneous autotransplantation of the immature impacted third molars with the guidance of computer-aided rapid prototyping (CARP) to the place of mandibular first or second molars with extraction indication due to the untreatable radiographic periapical lesions.

Patients And Methods: Twelve radiographically and clinically hopeless mandibular first or second molars with periapical lesions of 10 patients between the ages of 15 to 21 were included in this retrospective clinical study. Cone-beam computed tomography (CBCT) images were used to produce the CARP models of the donor impacted third molars. Read More

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January 2021

The risk for infraposition of dental implants and ankylosed teeth in the anterior maxilla related to craniofacial growth, a systematic review.

Acta Odontol Scand 2021 Jan 24;79(1):59-68. Epub 2020 Aug 24.

Department of Oral and Maxillofacial Surgery and Oral Medicine, Malmö University, Malmö, Sweden.

Background: The aim of the study was to evaluate a potential association between individuals with different craniofacial types or other exposures, and the risk of infraposition due to continued growth/eruption of adjacent teeth in the anterior maxilla.

Materials And Methods: This is a systematic review in which primary studies as well as other systematic reviews are scrutinised. A search of PubMed (Medline), Scopus, Web of science and Health technology assessment (HTA) organisations and a complementary handsearch was carried out. Read More

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January 2021

In Vivo Biological Evaluation of Orthodontically Moved Incisors after Replantation.

Medicina (Kaunas) 2020 Aug 20;56(9). Epub 2020 Aug 20.

Orthodontics Department, Dentistry School, Universidade Federal do Rio de Janeiro, Rio de Janeiro 21941-617, Brazil.

There is still considerable controversy regarding the possibility of submitting replanted teeth to orthodontic movement (OM). The purpose of the present study was to evaluate the tissue response after orthodontic movement on replanted teeth. Sixty Wistar rats were randomly assigned to four groups ( = 15): G1, replantation without OM after 30 days; G2, replantation with OM after 30 days; G3, replantation without OM after 60 days, and G4, replantation with OM after 60 days. Read More

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The effect of soy and whole milk as a means to store avulsed teeth: A histometric study.

Dent Traumatol 2021 Feb 24;37(1):81-89. Epub 2020 Sep 24.

Department of Diagnosis and Surgery, School of Dentistry, São Paulo State University (Unesp), Araçatuba, Brazil.

Background/aim: An adequate storage medium can help preserve the viability of periodontal ligament cells, favoring the periodontal ligament repair process. The aim of this study was to evaluate the repair process following the delayed replantation of teeth stored in soy milk and whole milk.

Material And Methods: The maxillary right incisors of 27 rats were divided into three equally sized groups: Group SM (delayed replantation with storage in soy milk), whose teeth were immersed in 50 mL of soy milk for 60 minutes; Group WM (delayed replantation with whole milk), teeth were kept for 60 minutes in 50 mL of whole milk; and Group D (delayed replantation with dry storage), teeth were kept in dry conditions for the same period (negative control). Read More

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February 2021

The teeth and dentition of the filefish (Stephanolepis cirrhifer) revisited tomographically.

J Oral Sci 2020 Sep 12;62(4):360-364. Epub 2020 Aug 12.

Division of Oral Structural and Functional Biology, Nihon University Graduate School of Dentistry.

The upper and lower tooth-bearing jaws of the filefish (Stephanolepis cirrhifer) were scanned using a micro-CT system in order to address the existing gaps between the traditional pictures of the morphology and histology. 2D tomograms, reconstructed 3D models and virtual dissection were employed to examine and evaluate the in situ geometry of tooth implantation and the mode of tooth attachment both separately and collectively. No distinct sockets comparable to those in mammals were evident, but shallow depressions were observed in the premaxillary and the dentary. Read More

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September 2020

Radiographic and Histologic Evaluation of Experimentally Induced Severe Intrusive Luxation of Immature Teeth in Rats.

J Endod 2020 Aug 7. Epub 2020 Aug 7.

Department of Pediatric Dentistry, Peking University School and Hospital of Stomatology, Peking University, Beijing, China. Electronic address:

Introduction: The aim of this study was to establish an intrusive luxation model in rats and observe the pulpal and periodontal outcomes.

Methods: The intrusion was experimentally induced by an application of 20-N force on the occlusal surface of maxillary right second molar along the tooth axial using a striking instrument in 3-week-old male Sprague-Dawley rats. Thirty rats were divided into 6 groups (n = 5) and were sacrificed after 3, 7, 14, 30, 60, and 90 days of the surgery. Read More

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The socket-shield technique: a step-by-step protocol after 12 years of experience.

Int J Esthet Dent 2020 ;15(3):288-305

The socket-shield technique, first published in 2010, has gained worldwide scientific and clinical acceptance. To address possible complications with this innovative approach in esthetic implant dentistry, we provide a comprehensive step-by-step protocol incorporating what we have learnt in the past decade. After initial decoronation of the tooth, the implant bed is prepared through the root of the tooth to be extracted. Read More

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Effect of root surface treatment with denusomab after delayed tooth replantation.

Clin Oral Investig 2021 Mar 29;25(3):1255-1264. Epub 2020 Jul 29.

Department of Pediatric Dentistry, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. do Café s/n, Ribeirão Preto, SP, 14040-904, Brazil.

Objectives: To evaluate denosumab, a human monoclonal antibody that mimics the effects of osteoprotegerin in bone metabolism, as a topical treatment of root surface to be used prior to delayed tooth replantation.

Materials And Methods: Thirty-six rats' right incisors were used. Teeth were extracted and divided into: delayed replantation without root surface treatment (control); delayed replantation with root surface treatment with denosumab 60 mg/mL and 30 mg/mL, respectively, for 10 min both experimentals groups. Read More

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