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Lateral incisor agenesy

G Zanotti, F Gelpi, S Sinigaglia, S Croce, U Tacchino, G Perozeni, U Luciano, D De Santis
The agenesis of the upper lateral incisor is one of the most frequent aesthetic-functional problems in dentistry. The reported case concerns a 49 years old male patient with bilateral agenesis of teeth 1.2-2.2 and a root stump of tooth 5.2 temporarily rehabilitated through a Maryland bridge. Without orthodontic treatment, the only solution for implant-prosthetic rehabilitation of tooth 1.2 results therefore in the use of a 2.9 mm diameter implant. The clinical and radiographic control of the implant and the gingival stability at a distance of 1 year gives a positive result both clinically and radiographically...
February 14, 2019: Journal of Biological Regulators and Homeostatic Agents
A F Gomes, Teresa Pinho
OBJECTIVE: This article assesses the esthetic opinion of the experts involved in dental restoration (general dentists, orthodontists, prosthodontists) and laypeople. Differences in esthetic opinion among the studied groups are assessed. MATERIAL AND METHODS: A questionnaire was constructed based on four photographs. A quantitative esthetic appreciation using a numerical scale was requested from four groups of observers. The final sample consisted of 434 participants: 142 laypeople, 141 general dentists, 100 orthodontists, and 51 prosthodontists...
2019: International Journal of Esthetic Dentistry
D Grejtakova, D Gabrikova-Dojcakova, I Boronova, L Kyjovska, J Hubcejova, M Fecenkova, M Zigova, M Priganc, J Bernasovska
Nonsyndromic hypodontia is a congenital absence of less than six permanent teeth, with a most common subtype maxillary lateral incisor agenesis (MLIA). Mutations in several genes have been described in severe tooth agenesis. The aim of this study was to search for the variants in wingless-type MMTV-integration site family member ( WNT10A ), paired box 9 ( PAX9 ) and axis inhibitor 2 ( AXIN2 ) genes, and investigate their potential role in the pathogenesis of non-syndromic hypodontia. Clinical examination and panoramic radiograph were performed in the cohort of 60 unrelated Slovak patients of Caucasian origin with nonsyndromic hypodontia including 37 MLIA cases and 48 healthy controls...
December 2018: Journal of Genetics
Frédéric Rafflenbeul, Catherine-Isabelle Gros, François Lefebvre, Sophie Bahi-Gross, Raphaëlle Maizeray, Yves Bolender
Objectives: The aim of this retrospective study was to assess in maxillary canine impaction cases both the prevalence of root resorption of adjacent teeth among untreated children and adolescents, and its associated risk factors. Subjects and methods: Sixty subjects (mean age 12.2 years; SD 1.9; range 8-17 years) with 83 displaced maxillary canines and without any past or ongoing orthodontic treatment were included in this study. The presence of root resorption was evaluated on images from a single cone beam computed tomography (CBCT) unit...
December 7, 2018: European Journal of Orthodontics
M V Korolenkova, N V Starikova, N V Udalova
AIM: The hypothesis tested was whether proper tooth development in cleft lip and palate (CLP) patients is affected by early orthopaedic treatment (EOT), primary surgical interventions and palatal defects after primary palatoplasty. METHODS: The prospective study groups comprised 369 CLP children (aged 11.0 ± 4.5 years) and 500 healthy children (aged 11.1 ± 3.8 years) aged > 6 years without any diseases associated with increased risk of dental anomalies...
December 3, 2018: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
Erdal Bozkaya, Nehir Canigur Bavbek, Begum Ulasan
INTRODUCTION: Missing or peg-shaped maxillary lateral incisors can affect the mesiodistal dimensions of the dentition. METHODS: The pretreatment casts of patients with bilateral (BMLI, n = 35) or unilateral (UMLI, n = 29) missing maxillary lateral incisors or bilateral peg-shaped maxillary lateral incisors (BPLI, n = 16) were evaluated. The mesiodistal widths of all permanent teeth except the second and third molars were measured, and the sums of total and quadrant tooth widths were calculated...
December 2018: American Journal of Orthodontics and Dentofacial Orthopedics
Ricardo Alves de Souza, Girlaine Nunes Alves, Juliana Macêdo de Mattos, Raildo da Silva Coqueiro, Matheus Melo Pithon, João Batista de Paiva
OBJECTIVE: The aim of this study was to evaluate the degree of perception of attractiveness of the smile among dentists, dental students, and lay persons in cases of agenesis of the maxillary lateral incisors replaced by canines for space closure. METHODS: A smiling front view extraoral photograph of a 20-year-old woman was digitally altered simulating agenesis and its treatment, by means of: repositioning, reshaping or bleaching the canine, and gingival contour...
September 2018: Dental Press Journal of Orthodontics
Isabella Simões Holz, Roberta Martinelli Carvalho, José Roberto Lauris, Steven J Lindauer, Daniela Gamba Garib
INTRODUCTION: The aims of this study were to investigate the eruption pattern of maxillary permanent canines in the alveolar cleft area after secondary alveolar bone grafting and to assess the risk indicators for canine impaction. METHODS: The sample consisted of 75 patients with unilateral cleft lip and palate who underwent secondary alveolar bone grafting with rhBMP-2 with a mean age of 9.8 years of age at 1 center. A split-mouth study design was used, with the noncleft hemiarch comprising the control group...
November 2018: American Journal of Orthodontics and Dentofacial Orthopedics
Mariam Al-Abdallah, Abeer AlHadidi, Mohammad Hammad, Najla Dar-Odeh
BACKGROUND: The aim of this study was to investigate the association between the severity of permanent tooth impaction and a number of predefined factors, including tooth type, age, gender, tooth agenesis, microdontia of maxillary lateral incisor, and retained deciduous predecessors. METHODS: A sample of 2979 dental patients, aged 15 to 40 years, was surveyed by two calibrated examiners for permanent tooth impaction (excluding third molars). On panoramic radiographs, the impacted teeth were initially ranked based on their vertical, horizontal, and angular positions, and the ranking was then analysed for distribution by the predefined factors...
November 1, 2018: BMC Oral Health
Elham S Abu Alhaija, Fedaa T Wazwaz
OBJECTIVES: To investigate the association between third molar agenesis and pattern of impaction, missing teeth, and peg-shaped lateral incisor with palatal canine displacement (PDC). MATERIALS AND METHODS: The pretreatment orthodontic orthopantomograms of 438 patients (122 males and 316 females) diagnosed with PDC were included. A total of 338 patients with normally erupted canines who had a preexisting radiograph as part of their orthodontic treatment (125 males and 313 females) served as controls...
October 16, 2018: Angle Orthodontist
Bianca Núbia Souza-Silva, Walbert de Andrade Vieira, Ítalo de Macedo Bernardino, Marília Jesus Batista, Marcos Alan Vieira Bittencourt, Luiz Renato Paranhos
OBJECTIVE: This study aimed to investigate the prevalence and the factors associated with non-syndromic tooth agenesis, besides identifying its pattern of occurrence. STUDY DESIGN: Pre-orthodontic exams of 3400 subjects, aged 8-30 years, were selected from a radiographic center in Brazil. Panoramic and periapical radiographs were analyzed to verify the presence of tooth agenesis and other six dental anomalies. Descriptive statistics were calculated using the Tooth Agenesis Code tool and, to evaluate significant associations, a negative binomial regression model was constructed...
December 2018: Archives of Oral Biology
Norihisa Higashihori, Jun-Ichi Takada, Minami Katayanagi, Yuki Takahashi, Keiji Moriyama
BACKGROUND: Tooth agenesis can involve one or more congenitally missing teeth (CMT) and is the most common congenital dental anomalies in humans. Tooth agenesis and reduction of mesiodistal tooth width are reportedly associated, suggesting that the pathogenesis of the two conditions is related. The current study analyzed the frequency of tooth agenesis and mesiodistal tooth width in cases of hypodontia (1-5 CMT) and oligodontia (≥ 6 CMT) in Japanese patients based on the hypothesis that reductions in mesiodistal tooth width are more frequently associated with oligodontia than hypodontia...
August 20, 2018: Progress in Orthodontics
Giuseppina Laganà, Nicolò Venza, Roberta Lione, Carlo Chiaramonte, Carlotta Danesi, Paola Cozza
BACKGROUND: The aim of present study was to test the association between hypodontia and displaced maxillary canine when compared with a control group. METHODS: The study group was composed of 336 subjects with a mean age of 10.7 ± 1.2 years, presenting with at least one missing tooth. Exclusion criteria included syndromes, craniofacial malformations, extractions and trauma history and previous orthodontic treatment. The control group consisted of 336 subjects with a mean age of 10...
July 20, 2018: Progress in Orthodontics
Ricardo D Bennun, Julia H Harfin
Bilateral complete clefts represent the result of an incomplete fusion with all the morphologic components present. It is well known that patients with bilateral cleft lip and palate have typical characteristics such as insufficient medial face development with an orthodontic class III tendency, flat nose and short columella with abnormal nasolabial angle, bilateral oronasal fistulas, alterations in the number and position of the lateral incisors, and agenesis or supernumerary teeth. Successfully solving these cases, results in a difficult challenge and studies showing extended follow-up are not frequent...
September 2018: Journal of Craniofacial Surgery
Geórgia Silva, Ana Cristina Normandes, Edson Barros Júnior, Joyce Gatti, Kalena Maranhão, Ana Cássia Reis, Fernanda Jassé, Lucas Moura, Thaís Barros
The increasing demand of patients looking for esthetics has resulted in the development of several techniques to restore anterior teeth. Conservative treatments should always be the first therapeutic option for the solution of aesthetic problems involving morphological changes and usually provide the result that the patient expects. In this context, ceramic laminate veneers, also known as "contact lenses," are capable to provide an extremely faithful reproduction of natural teeth with great color stability and periodontal biocompatibility...
2018: Case Reports in Dentistry
Fernando-Cesar Torres, Claudio-Fróes de Freitas, Diego-Vianez Pereira, Tarcila Triviño, Acácio Fuziy, Fernando-Akio Maeda
Background: Clinical cases involving agenesis of all four maxillary incisors are rare, with no previous reports in the literature. Case report: The present case report describes an orthodontic treatment combined with esthetic dentistry in a 10-year-old girl with agenesis of all four permanent maxillary incisors, anterior crossbite, permanence of deciduous maxillary canines and transmigration of permanent maxillary canines into the region of the maxillary central incisors...
April 2018: Journal of Clinical and Experimental Dentistry
Thikriat S Al-Jewair, Brittany Swiderski
ARTICLE TITLE AND BIBLIOGRAPHIC INFORMATION: Prosthetic replacement vs space closure for maxillary lateral incisor agenesis: A systematic review. Silveira GS, Almeida NV, Pereira DMT, Mattos CT, Mucha JN. Am J Orthod Dentofacial Orthop 2016; 150(2):228-37. SOURCE OF FUNDING: None listed TYPE OF STUDY/DESIGN: Systematic review.
June 2018: Journal of Evidence-based Dental Practice
Cátia Lamas, Asela Lavall, Teresa Pinho
OBJECTIVE: Assess whether the permanent maxillary canine (MC) has a natural tendency to erupt mesially in children with maxillary lateral incisors agenesis (MLIA), compared to children without agenesis. STUDY DESIGN: This retrospective, observational, cross-sectional study consisted of children between 5 and 12 years old divided into three groups: the first group with unilateral MLIA, in which an intraindividual analysis was performed, the second group presented bilateral MLIA, and the third group with patients without agenesis...
2018: Journal of Clinical Pediatric Dentistry
Inès Dallel, Wiem Marwen, Sofiene Ben Abdallah, Samir Tobji, Adel Ben Amor, Pierre Canal
In his daily practice, the orthodontist is regularly asked to treat patients with one or more missing teeth. Considering their functional and esthetic specificities, and the relatively high frequency of agenesia, our interest was to focus on the permanent lateral upper incisors. Our study, based on an orthodontic population including 1000 patients, shows that about 7.8% of these patients present agenesis of at least one permanent tooth (out of which 3.6% are agenesis of the upper lateral incisor). Treatment options for these cases are multiple with several decisional factors to consider: the solutions often lead to compromises, and require a multidisciplinary coordination...
June 2018: International Orthodontics
Naji Ziad Arandi, Shockry Mustafa
Objective: This study aims to estimate the prevalence of congenitally missing lateral incisors in a sample of 2662 dental patients in Palestine. Methods: A total of 2662 digital panoramic radiographs were retrospectively examined for the presence of congenitally missing permanent lateral incisors. The radiographs were obtained from the archival records of patients attending a local dental center at the city of Nablus in Palestine. Results: The prevalence of missing lateral incisors among the examined population (n = 2662) was found to be 1...
April 2018: Saudi Dental Journal
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