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J Endod 2022 Apr 8. Epub 2022 Apr 8.

Division of Conservative Dentistry and Endodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India.

The management of traumatic dental injury aims at functional and esthetic rehabilitation. After luxation injury, a displaced tooth must be replaced into its normal position as soon as possible. Incorrect tooth repositioning can cause discomfort to the patient and compromise the outcome. Read More

World J Clin Cases 2022 Feb;10(6):2015-2022

Department of Dental Implantology, School and Hospital of Stomatology, Jilin University, Changchun 130021, Jilin Province, China.

Background: Bone deficiency and soft tissue atrophy in the absence of maxillary lateral incisors are among the most challenging problems for implant clinicians. Autologous bone grafting is the gold standard for bone augmentation, but not without limitations. Platelet-rich fibrin (PRF), a biodegradable autologous biomaterial, has been widely used for bone and soft tissue management. Read More

J Pak Med Assoc 2021 Jan;71(1(B)):277-280

Department of Orthodontics, DIKIOHS, Dow University of Health Sciences, Karachi, Pakistan.

Objective: To assess the frequency of maxillary ectopic canine both buccally and palatally displaced with incisor root resorption and dental agenesis.

Methods: The cross-sectional study was conducted from April 8 to June 29, 2019, at the Department of Orthodontics, Dr. Ishrat Ul Ebad Khan Institute of Oral Health Sciences, and Dow Dental College, Dow University Of Health Sciences, Karachi, and comprised orthodontic patients diagnosed with maxillary ectopic canine eruption. Read More

Int J Periodontics Restorative Dent 2022 Jan-Feb;42(1):25-33

Tooth malposition negatively affects the outcome of root coverage procedures, limiting chances for complete root coverage (CRC). This case series introduces a combined orthodontic-mucogingival approach for the treatment of deep (> 4 mm) isolated gingival recession defects affecting mandibular incisors with a buccally displaced root. Twenty patients were treated with a novel orthodontic device (FZ Root Torque Controller) for selective correction of tooth malposition at the affected site, turning all isolated recessions into Miller Classes I and II. Read More

J Pharm Bioallied Sci 2021 Nov 10;13(Suppl 2):S1286-S1290. Epub 2021 Nov 10.

Private Dental Practioner, Hajipur, Bihar, India.

Introduction: The purpose of the study was to scientifically test maxillary canine retraction assisted by miniscrew implant with corticotomy-facilitated orthodontics.

Materials And Methods: Fifteen patients (six males, nine females) who had Class II division malocclusion with enhanced overjet were included in the study. Maxillary first premolars were surgical displaced along with retraction of maxillary. Read More

Cochrane Database Syst Rev 2021 12 30;12:CD012851. Epub 2021 Dec 30.

Department of Orthodontics and Maxillofacial Surgery, Solihull Hospital, Solihull, UK.

Background: A permanent upper (maxillary) canine tooth that grows into the roof of the mouth and frequently does not appear (erupt) is called a palatally displaced canine (PDC). The reported prevalence of PDC in the population varies between 1% and 3%. Management of the unerupted PDC can be lengthy, involving surgery to uncover the tooth and prolonged orthodontic (brace) treatment to straighten it; therefore, various procedures have been suggested to encourage a PDC to erupt without the need for surgical intervention. Read More

J Int Med Res 2021 Dec;49(12):3000605211060674

Department of Stomatology, 47861Nanchang University, Fourth Affiliated Hospital of Nanchang University, Nanchang, China.

An increasing number of studies have investigated the use of osteotome sinus floor elevation (OSFE) with simultaneous implant placement for maxillary sinus floor residual bone height (RBH) <4 mm. Many studies have reported good clinical results, but very few have reported complications related to this procedure. Here, the case of a 50-year-old female patient with an RBH in the left upper posterior region of 1-4 mm, who underwent OSFE with simultaneous placement of three Bicon short® implants, is described. Read More

J Dent (Shiraz) 2021 Dec;22(4):308-311

Dept. of Oral and Maxillofacial Surgery, Dental Faculty, Lebanese University, Beirut, Lebanon.

The extraction of retained and completely impacted third molars is one of the most common surgical procedures performed by dental practitioners with low rates of complications. The accidental displacement during the surgeries of the maxillary third molar into adjacent anatomical spaces is one of the most critical problems that can arise. The most common sites of migration during surgical interventions are the infratemporal fossa, the pterygomandibular space, the maxillary sinus, the buccal space, and the lateral pharyngeal space. Read More

Anat Rec (Hoboken) 2021 Oct 28. Epub 2021 Oct 28.

Department of Fisheries, Wildlife and Conservation Biology, University of Minnesota, Saint Paul, Minnesota, USA.

Modes of teleost tooth replacement and attachment have historically been described using discrete classification systems that categorize major patterns across taxa. While useful, these discrete classification schemes understate teleost tooth diversity. The "unattached" dentition of salariin combtooth blennies (Blenniiformes: Blenniidae: Salariini) is frequently overlooked due to its perceived complexity, so we examined the Pacific Leaping Blenny, Alticus arnoldorum, to describe this complex morphology. Read More

West Afr J Med 2021 09;38(9):903-906

Department of Pediatric Dentistry, Child Dental Health, Faculty of Dental Sciences, College of Medicine; University of Lagos,Lagos, Nigeria/Department of Child Dental Health, Lagos University Teaching Hospital, Lagos, Nigeria.

Introduction: Odontomas are the most common odontogenic tumors worldwide and are usually chance findings seen on routine dental examinations. However, on progression, they may be associated with adjacent tooth displacement.

Case Description: We report a case of an 11-year-old girl who presented at the Lagos University Teaching Hospital (LUTH) pediatric dental clinic with a complaint of painless enlargement of the left anterior maxilla of 2-years duration. Read More

Oral Maxillofac Surg 2021 Oct 1. Epub 2021 Oct 1.

Department of Oral and Maxillofacial Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, 2-5-1Shikata-cho, Kita-ku, Okayama-shi, 700-8525, Japan.

Purpose: The displacement of the tooth/tooth fragment into the floor of mouth sometimes happens during the lower third molar surgery and the patients are usually referred to oral and maxillofacial surgeons. To date, however, there is no consensus how to manage the displaced tooth due to the lack of available data.

Methods: In this study, we have retrospectively analyzed the management of the displaced lower third molar into the floor of mouth. Read More

Dent J (Basel) 2021 Aug 24;9(9). Epub 2021 Aug 24.

Department of Endodontics and Restorative Dentistry, School of Medicine and Dentistry, Catholic University of Valencia, Quevedo 2, 46001 Valencia, Spain.

Internal bleaching is a conservative, non-invasive, and simple treatment that is frequently performed in daily clinical practice. The present in vitro study analyzes the oxygen expansion of different bleaching agents resulting from the oxidation reaction when interacting with enamel and dentin. Enamel and dentin were crushed separately until obtaining a fine powder with particles of an approximate size between 0. Read More

Am J Orthod Dentofacial Orthop 2021 Sep;160(3):401-409

School of Dentistry, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, Alberta, Canada; Department of Mechanical Engineering, Faculty of Engineering, University of Alberta, Edmonton, Alberta, Canada. Electronic address:

Introduction: The objective of this study was to evaluate the forces and moments exerted by orthodontic aligners on 3 different displaced maxillary teeth and their adjacent supporting teeth.

Methods: An in vitro orthodontic simulator was used to measure the forces and moments of a 0.75-mm thick glycol-modified polyethylene terephthalate material for 3 maxillary teeth: central incisor, canine, and second premolar. Read More

Eur J Orthod 2021 10;43(5):506-507

Department of Child Dental Health and Orthodontics, University of Malta, Msida, Malta GC.

Evidence for open or closed exposure of palatally displaced canines is equivocal, but this study sheds light on new facets which may influence the method of choice. The aim of this article is to give a short perspective on this field, highlight the merits of a study published in this issue of the European Journal of Orthodontics by Björksved et al. the study, place the findings into context and show how it may influence clinical practice. Read More

Bull Tokyo Dent Coll 2021 Sep 15;62(3):181-192. Epub 2021 Aug 15.

Department of Orthodontics, Tokyo Dental College.

Aggressive periodontitis mostly affects young people, causing rapid destruction of periodontal tissue and loss of supporting alveolar bone. The destruction of periodontal tissue induces pathological tooth movement, resulting in various types of malocclusion such as crowding or spacing in the dentition. This report describes orthodontic treatment for malocclusion due to generalized aggressive periodontitis. Read More

Eur J Orthod 2021 10;43(5):498-505

Postgraduate Dental Education Center, Department of Orthodontics, SE-701 11 Örebro, Sweden.

Objective: To evaluate the costs of open and closed surgical exposure and subsequent orthodontic treatment for the correction of palatally displaced canines (PDCs).

Trial Design: A multicentre, two-arm parallel group randomized controlled trial.

Methods: One hundred twenty adolescents between 9 and 16 years of age, from three orthodontic specialist centres, were randomized to one of the two surgical exposure interventions. Read More

Am J Orthod Dentofacial Orthop 2021 Oct 14;160(4):560-566. Epub 2021 Jul 14.

Department of Child Dental Health and Orthodontics, Faculty of Dental Surgery, University of Malta, Msida, Malta. Electronic address:

Introduction: Delayed tooth eruption is often seen in patients with palatally displaced canines (PDC), but there is controversy over whether tooth formation is also delayed. This study attempts to elucidate the answer by addressing methodological shortcomings in previous studies.

Methods: Archived records were searched, and 100 patients (aged 8-16 years) with unilateral PDC were identified. Read More

Dent Res J (Isfahan) 2021 6;18:27. Epub 2021 Apr 6.

Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran.

Background: Association of cuspid impaction with adjacent lateral incisor anomalies is under controversy. The aim of this study was to investigate the correlation between maxillary cuspid impaction with dental anomalies.

Material And Methods: In this experimental study, the material consisted of pretreatment dental records of 102 patients with at least one palatally or buccally displaced impacted permanent cuspid (palatal and buccal impaction groups). Read More

Contemp Clin Dent 2021 Apr-Jun;12(2):187-190. Epub 2021 Jun 14.

Department of Oral and Maxillofacial Surgery, Dr. R Ahmed Dental College and Hospital, Kolkata, West Bengal, India.

Iatrogenic displacement of a tooth or tooth fragment is a rare but well-recognized complication that occurs during exodontia. The most common sites of dislodgment of a mandibular third molar fragment are the sublingual, submandibular, and pterygomandibular and lateral pharyngeal spaces. Removal of a displaced tooth from these spaces may be complex due to poor visualization and limited access. Read More

Arch Oral Biol 2021 Sep 10;129:105197. Epub 2021 Jun 10.

Department of Anesthesiology and Pain Medicine, Univ. Washington, Seattle, WA, 98195-6540, USA.

Objective: Our goal was to define trigeminal nerve ending quantities and patterns in rat molar dentine, their responses to attrition (tooth wear), and their associated odontoblasts and connections with pulpal plexuses.

Design: Trigeminal ganglia were labeled for axonal transport of H-proteins to dentinal nerve endings in male rats (3-13 months old). Autoradiography detected radio-labeled dentinal tubules as indicators of nerve ending locations. Read More

Int J Dent 2021 1;2021:8883254. Epub 2021 Jun 1.

Department of Dental Anatomy, Dental Branch, Azad University, Tehran, Iran.

Purpose: The literature regarding the treatment of posterior crossbites using a transpalatal arch (TPA) is scarce. Moreover, there is only one clinical study on the correction of unilateral crossbites using torque activation. This is an important clinical issue; therefore, this study was conducted to show the effects of an active Goshgarian TPA in correcting nonfunctional single-tooth unilateral crossbite. Read More

Eur J Orthod 2021 10;43(5):487-497

Postgraduate Dental Education Centre, Department of Orthodontics, Örebro, Sweden.

Objectives: To compare treatment time, patients' perceptions during orthodontic treatment, dental fear and side effects, between open and closed surgical exposures in patients with palatally displaced canines (PDCs).

Trial Design: Multicentre, randomized controlled trial, with random 1:1 allocation of two parallel groups.

Materials And Methods: One hundred and twenty patients from three different orthodontic centres were randomized into one of the two intervention arms, open or closed surgical exposure. Read More

Br Dent J 2021 05 28;230(10):671-675. Epub 2021 May 28.

Consultant in Restorative Dentistry, King's College NHS Trust, UK.

The International Association for Dental Traumatology has recently updated its guidelines following on from a consensus methodology. The update involves increased radiographic review, reduced splinting time for avulsed teeth and the recommendation against extraction of luxated primary teeth when displaced towards the permanent tooth germ. This article will highlight the relevant updates and introduce clinicians to the core outcome sets developed for traumatic dental injuries in both adults and children. Read More

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

Int J Clin Pediatr Dent 2020 Nov-Dec;13(6):644-649

Department of Preventive Dental Sciences, Faculty of Dentistry, Najran University, Najran, Kingdom of Saudi Arabia.

Aim: An avulsion is defined as one of the most common dental injuries where the tooth is displaced completely from its socket, followed by trauma. The most important time in managing the avulsed tooth is the first few minutes and as children spend their most of waking time in school so the teacher is considering their immediate caregiver. Hence, this study was done to carry out the knowledge and attitude of school teachers regarding emergency management of avulsed permanent tooth in schools located in the southern region of Saudi Arabia. Read More

Int Orthod 2021 Jun 7;19(2):310-318. Epub 2021 May 7.

University of Detroit Mercy, School of Dentistry, Department of Orthodontics, Detroit, MI, USA; Nahda University in Beni-Suef (NUB), Faculty of Dentistry, Beni-Suef, Egypt. Electronic address:

Dental anomalies of size, number, and position have been suggested to have a genetic background and frequently complicate the orthodontic treatment. Early intervention is a paramount step in managing patients with dental anomaly patterns (DAPs) to decrease the complexity of the case during the later stages of comprehensive orthodontic care. This case report highlights the importance of the detailed diagnosis in a case with several dental anomalies (mandibular lateral incisor-canine transposition, palatally displaced canines, small-sized maxillary lateral incisors and congenitally missing second premolar), utilizing interceptive orthodontic management in the mixed dentition stage in order to minimize the complexity and complications of comprehensive orthodontic care in the permanent dentition stage. Read More

Contemp Clin Dent 2020 Jul-Sep;11(3):261-265. Epub 2020 Nov 26.

Department of Orthodontics and Dentofacial Orthopedics, MES Dental College, Malappuram, Kerala, India.

Context: Displacement of bracket after initial placement on tooth surface in the precure phase of bonding influences the shear bond strength.

Aims: The aim of this study was to evaluate the influence of bracket displacement during the precure phase after initial placement on the tooth surface on shear bond strength of chemical cure and light cure composites.

Settings And Design: experimental study. Read More

Craniomaxillofac Trauma Reconstr 2021 Mar 12;14(1):74-78. Epub 2020 Apr 12.

Department of Oral and Maxillofacial Surgery, SRM Dental College and Hospital, Ramapuram Campus, Ramapuram, Chennai, Tamil Nadu, India.

Mandibular angle fractures are frequently encountered as they constitute an area of weakness. Complications after open reduction and internal fixation (ORIF) of angle fractures commonly arise due to improper reduction and fixation methods that fail to counteract the dynamic muscle forces present in this region. Conventional reduction methods such as digital manipulation, intermaxillary fixation, towel clip traction, and wiring are associated with various limitations. Read More

BMJ Case Rep 2021 Feb 18;14(2). Epub 2021 Feb 18.

RajaRajeswari Dental College and Hospital, Bangalore, Karnataka, India.

J Orofac Orthop 2021 May 5;82(3):198-208. Epub 2021 Feb 5.

Department of Orthodontics, Faculty of Medicine, Medical University of Gdańsk, Aleja Zwycięstwa 42c, 80-210, Gdańsk, Poland.

Purpose: The aims of this retrospective cross-sectional study were to measure and compare labial and palatal alveolar bone heights of maxillary central incisors in unilateral cleft lip and palate patients, following STROBE (Strengthening the Reporting of Observational Studies in Epidemiology) guidelines.

Patients And Methods: The study group consisted of 21 patients with a mean age of 16 years. High-resolution cone-beam computed tomography was performed at least one year after secondary alveolar bone grafting. Read More