Intentional replantation for the treatment of a double-rooted maxillary lateral incisor with periodontal-endodontic lesions: a case report and literature review / 口腔疾病防治

Objective@#To investigate the clinical characteristics, diagnosis and treatment of severe combined periodontal-endodontic lesions in a double-rooted maxillary lateral incisor with a palatal radicular groove and to provide a reference for clinical diagnosis and treatment.@*Methods@#A patient with a double-rooted left maxillary lateral incisor with a palatal radicular groove and severe combined periodontal-endodontic lesions underwent complete root canal therapy and intentional replantation, and a retrospective analysis of the management of this type of patient was performed based on the literature.@*Results@#The 3-year follow-up examination revealed no discomfort, good healing of the upper left lateral incisor, no pathological loosening, and a palatal gingival sulcus was found at a depth of approximately 1 mm. Review of the literature showed that the prognosis of the affected tooth and the choice of treatment plan were correlated with the length and depth of extension of the lingual groove toward the root, the periodontal condition and the pulpal status of the affected tooth. For minor PRGs or for affected teeth with no loss of pulpal viability, flap surgery and odontoplasty can be used to avoid endodontic treatment or retreatment. For deep or long lingual grooves that result in significant loss of periodontal tissue, endodontic treatment, odontoplasty, or closure of the grooves and guided tissue regeneration are needed. In the case of PRGs with double root formation, the affected tooth can be preserved via root canal therapy, removal of the small root and filling with apical restorative material, and intentional replantation.@*Conclusion@#In cases of severe combined periodontal-endodontic lesions due to palatal radicular grooves occurring in double-rooted maxillary lateral incisors, clinical presentation and imaging can prevent missed diagnoses, and appropriate treatment should be based on the length and depth of lingual grooves extending toward the roots, periodontal conditions, and pulpal status of the affected teeth.

Multidisciplinary treatment of Class I Angle Malocclusion with severe crowding and peg lateral incisor: A case report

@#Class I malocclusions with severe crowding and tooth size discrepancies may be successfully treated orthodontically with extraction therapy, and co-management with other specialists. Correction of the discrepancies will optimize occlusal result (overjet, overbite, midline shift, and smile esthetics). This is a case of a 19-year-old male with severe crowding in upper and lower teeth and peg lateral incisor. The patient had malocclusion Class I. This case was treated comprehensively and successfully using fixed orthodontic appliances with extraction of four premolars, and veneer composite for peg lateral incisor with the help of a conservative dentist at the end of orthodontic treatment.

ViVan Formula- A Modified Formula for Estimating the Mesiodistal Width of Maxillary Central and Lateral Incisor

It is a frequent occurrence that teeth especially maxillary incisors are either completely avulsed or fractured due to trauma in facial region. Replacement of these missing teeth always possess a challenge if there are no prior dental records of the patient. Also, maxillary lateral incisors are frequently smaller in size – “Peg shaped” or congenitally absent. Aesthetic correction or/and replacement of this tooth also poses a problem when prior records are missing.METHODSTotally, 300 study casts were taken from the patients and digital vernier caliper was used to measure the mesiodistal width of maxillary central and lateral incisors and mandibular lateral incisors on both the sides. The mean and the standard deviations of the width was assessed. Similarly, the proportion between the widths of the maxillary lateral incisor and mandibular lateral incisor was also assessed and based on the proportions, the ViVan formula was derived.RESULTSBased on the proportions, ViVan Formula for Central Incisor and Lateral Incisor is derived.CONCLUSIONSViVan ratio determined the mesiodistal width of central and lateral incisor with the help of mandibular lateral incisor. This formula provides results accurately and with minimum error. One of the important diagnostic tools is the use of diagnostic model for estimation of tooth size. Tooth size must be proportionate to jaw size so as to avoid tooth size arch length discrepancy.

Multidisciplinary treatment of Class I angle Malocclusion with severe Crowding and Peg Lateral Incisor: A case report

@#Class I malocclusions with severe crowding and tooth size discrepancies may be successfully treated orthodontically with extraction therapy, and co-management with other specialists. Correction of the discrepancies will optimize occlusal result (overjet, overbite, midline shift, and smile esthetics). This is a case of a 19-year-old male with severe crowding in upper and lower teeth and peg lateral incisor. The patient had malocclusion Class I. This case was treated comprehensively and successfully using fixed orthodontic appliances with extraction of four premolars, and veneer composite for peg lateral incisor with the help of a conservative dentist at the end of orthodontic treatment.

Summary of combined orthodontic and implant treatment in the patients with the congenital absence of maxillary lateral incisors / 口腔疾病防治

Objective@#To summarize the treatment options for congenital maxillary lateral incisor agenesis (MLIA).@*Methods @#Review the literature, summarize the current treatment options and advantages and disadvantages of various methods of MLIA, and analyze cases. @*Results @#When a patient′s occlusion and other conditions are suitable for space closure and canine substitution, closure of the gap is the recommended method, as it has good aesthetic results and leads to good periodontal health. However, when closure cannot be performed, a dental implant has a strong advantage compared with other restoration methods. When planning implants for MLIA patients, doctors should carefully select the correct surgery time and take care with the implant position to obtain good results.@* Conclusion@#In the choice of a treatment plan for MLIA, we need to use the concept of multidisciplinary combined treatment to obtain a more satisfactory treatment effect with regard to aesthetics and function.

Pattern of Canine Impaction in Relation to Lateral Incisors: A Reterospective Study

Objective: The aim of this study was to evaluate the pattern of maxillary permanent canine impaction in relation to lateral incisors. Methods: This reterospective study was conducted on a sample of population that had been treated in the Dentistry Department. The study con¬sisted of clinical and radiographic examination of 56 patients coming to the department for treatment. The patients having age between 15-18 years were included in the study. Data was analysed using SPSS version 22. A p-value of <0.05 was accepted as statistically significant. Results: Females had more impaction of maxillary canine than males. Palatal canine impaction were the most common in males while buccal canine impaction were more common in females. Conclusion: Maxillary palatal impaction was more common than buccal impaction and maxillary palatal and buccal impaction occurred more often in female subjects.

Effects of Maxillary Lateral Incisor Agenesis on Skeletodental Characteristics in Mixed Dentition / 대한소아치과학회지

This study aimed to evaluate skeletodental characteristics of patient with maxillary lateral incisor agenesis (MLIA) in mixed dentition.It involved the children in early mixed dentition who visited Pusan National University dental hospital for orthodontic purposed and had intact primary canines. 38 children with MLIA and 38 controls with the same chronological age satisfying the inclusion criteria were selected. The craniofacial structures and dental arch dimensions of the MLIA were evaluated using model & cephalometric analysis and compared to controls.The rate of unilateral MLIA was high in male and the rate of bilateral MLIA was high in female. In model analysis, the width / length ratio of maxillary anterior portion of the MLIA group were higher and arch perimeter of the maxilla of the MLIA group were smaller than those of the control group (p = 0.003, 0.04). Cephalometric analysis showed that there were no significant differences in terms of skeletal, dental analysis. In soft tissue profile, nasolabial angle was larger in MLIAs than in controls (p = 0.039).Considering these skeletodental characteristics of MLIA, early diagnosis and proper management is highly recommended to minimize the possibility of functional defect.

Root morphology and number of canals in mandibular central and lateral incisors using cone beam computed tomography

Abstract Most failures in endodontic treatment of mandibular incisors are due to the presence of a missed canal specifically the lingual. This investigation aimed to examine the root morphology and number of canals in mandibular incisors using cone beam computed tomography (CBCT). Two hundred and seven patients were assessed in terms of their mandibular central and lateral incisors of CBCT. The inclusion criteria were absence of root resorption, coronal restoration or root filling and clarity and optimal resolution of images. According to the Vertucci's classification, number of roots and canals and type of canal were evaluated by two oral and maxillofacial radiologists. In order to data analysis SPSS version 16 and descriptive statistics were implemented. All mandibular incisors had one root. Most central (84.5%) and lateral (78.2%) incisors had a single canal (p= 0.065). The majority of central (54.5%) and lateral (56.5%) incisors were Vertucci's type I (p= 0.102). Prevalence of one canal in males: central (84.8%), lateral (77.9%) and in females: central (84.2%), lateral (78.5%) (p= 0.518). Prevalence of Vertucci's type I in males: central (52.3%), lateral (45.3%) and in females: central (56.1%), lateral (64.4%) (p=0.188). The prevalence of two canals was 15.5% (central) and 21.8% (lateral) in mandibular incisors. The Vertucci's type I was the most typical kinds of mandibular incisors. Considering the limitations of periapical radiography in determining canal morphology, CBCT can be helpful in case of any concern regarding root canal morphology.

Resumo A maioria das falhas no tratamento endodôntico dos incisivos mandibulares é devida à presença de um canal perdido, especificamente do lingual. Esta investigação teve como objetivo analisar a morfologia radicular e o número de canais nos incisivos inferiores utilizando a tomografia computadorizada de feixe cônico (TCFC). Duzentos e sete pacientes foram avaliados em termos de seus incisivos centrais e laterais mandibulares de TCFC. Os critérios de inclusão foram ausência de reabsorção radicular, restauração coronária ou preenchimento radicular e clareza e resolução ótima das imagens. De acordo com a classificação de Vertucci, o número de raízes e canais e o tipo de canal foram avaliados por dois radiologistas orais e maxilo-faciais. Para análise dos dados, o SPSS versão 16 e análise estatística descritiva foram implementados. Todos os incisivos inferiores tinham uma raiz. A maioria dos incisivos centrais (84,5%) e laterais (78,2%) apresentava um único canal (valor de P: 0,065). A maioria dos incisivos centrais (54,5%) e laterais (56,5%) eram do tipo I de Vertucci (valor de P: 0,102). Prevalência de um canal no sexo masculino: central (84,8%), lateral (77,9%) e no feminino: central (84,2%), lateral (78,5%) (valor de P: 0,518). Prevalência de Vertucci tipo I em homens: central (52,3%), lateral (45,3%) e feminina: central (56,1%), lateral (64,4%) (valor de P: 0,188). A prevalência de dois canais foi de 15,5% (central) e 21,8% (lateral) nos incisivos inferiores. O tipo I de Vertucci era dos tipos mais comuns de incisivos inferiores. Considerando as limitações da radiografia periapical na determinação da morfologia do canal, a TCFC pode ser útil em caso de qualquer preocupação com relação à morfologia do canal radicular.

Esthetic evaluation of frontal smile on different crown heights of lateral incisor and canine / 中南大学学报(医学版)

Objective:To investigate the effect of different crown heights of lateral incisor and canine on smile esthetics perception between orthodontists and patients.Methods:A total of 31 orthodontists and 56 patients on smile aesthetics perception were investigated.We adjusted the height of lateral incisor and canine to get 20 kinds of anterior tooth area morphology by Photoshop and asked interviewees to grade.Scores of satisfaction were recorded by Likert method.Results:Subjects in the 2 groups preferred smiles with upper anterior teeth edge parallel to lower lip.There was better acceptance for longer canines and less satisfaction at shorter lateral incisors in patients.Patients also got higher discrete degree of evaluation results and more rigorous about smile esthetics than orthodontists.Conclusion:Orthodontists and patients have different satisfaction at esthetics of anterior teeth.Esthetics preference should be considered in orthodontic treatment schedule.

Non-syndromic Supplemental Permanent Maxillary Lateral Incisor: A Rare Case Series.

Supernumerary teeth, or hyperdontia, are the additional teeth to the normal series and are seen in all quadrants of the jaw. They have been reported to occur in both primary and permanent dentition. The supplemental supernumerary refers to duplication of teeth in the normal series and is found at the end of the tooth series. The majority of supernumeraries found in primary dentition are of the supplemental type. It is rare and was overlooked because of their normal size and shape. Hereby, we report three cases of supplemental maxillary permanent lateral incisor which resulted in crowding and poor esthetics. This case series reports unilateral supplemental teeth and its management.

Endodontic treatment and restoration of a maxillary lateral incisor with three canals:A case report / 实用口腔医学杂志

The left lateral incisor with occlusal soreness of a 30-year old female was examined and treated.Radiographic examination re-vealed periradicular radiolucency around the apical and 3 canals.The 3 root canals were treated by root canal therapy,the tooth was restored by all-ceramic crown for the prevention of fracture.12 month follow-up showed that the treatment was effective.

Orthodontic Treatment Combination with Auto Transplantation for the Management of Impacted Maxillary Left Lateral Incisor and Canine: An Interdisciplinary Approach.

Aims: For the orthodontic treatment of the complex cases, the interdisciplinary team work is of utmost importance, which leads to the predictable outcome with excellent treatment. The prime aim of this rare case report is to demonstrate the combined orthodontic-surgical-endodonticprosthodontic interdisciplinary management. Presentation of Case: This report describes the case of a 19 years old Malay male patient with the clinical problems of median diastema, mesio-buccally rotated maxillary left 1st premolar, mild mandibular incisor crowding along with impacted maxillary left lateral incisor and canine. Discussion: With the advantages of the orthodontic fixed appliance, auto-transplantation of maxillary upper left lateral incisor and canine, the case was completed in an ideal orthodontic occlusion along with improved oral condition, masticatory function and esthetics. The treatment outcomes were due to orthodontic-surgical-endodontic-prosthodontic treatment with stable occlusion in sequels visits. Conclusion: An Interdisciplinary management achieved successful functional and esthetic results in the present case.

Management of apicomarginal defect in esthetic region associated with a tooth with anomalies

Tooth related factors such as palatoradicular groove can be one of the causes for localized periodontal destruction. Such pathological process may result in apicomarginal defect along with inflammation of pulp. This creates challenging situation which clinician must be capable of performing advanced periodontal regenerative procedures for the successful management. This case report discusses clinical management of apicomarginal defect associated with extensive periradicular destruction in a maxillary lateral incisor, along with histopathologic aspect of the lesion.

Adenomatoid odontogenic tumor associated with an unerupted mandibular lateral incisor: a case report

Adenomatoid odontogenic tumor (AOT) is a rare, benign odontogenic tumor that predominantly appears in the second decade of life in female patients. Most AOTs occur in the anterior part of the maxilla and are usually associated with impacted anterior teeth. There are three types of AOT, follicular, extrafollicular, and peripheral, which are classified based on the location of the lesion and its association with the impacted tooth. We report a rare case of AOT associated with an impacted right mandibular lateral incisor in an 11-year-old female patient.

Palatogingival Groove - Cause of Root - Canal Failure - A Case Report.

Morphological defects occurring in dental structure can be sometimes predisposing factors for the onset of inflammatory processes in the periodontal and/or pulpal tissues. Palatogingival groove is one such defect, most frequently found on the lingual surface of maxillary laterals. They are easily overlooked as aetiologic factors, as these grooves are covered by periodontal tissues. This case report discusses successful management of a root-canal treated maxillary lateral incisor with an associated radicular lingual groove having persisting inflammatory condition. The management included a combination of endodontic therapy and periodontal regenerative techniques.

Prevalencia de microdoncia de incisivos laterales superiores en una población mexicana / Prevalence of upper lateral incisor microdontia in a mexican population

Introducción y objetivo: Microdoncia es una anomalía en la cual están presentes dientes con un tamaño inferior a lo normal. Presenta problemas que afectan la longitud de arco y a la estética facial. Cuando el ancho del incisivo lateral superior (ILS) es menor, igual o hasta 0,7 mm más ancho que el incisivo lateral inferior, el resultado sería exceso de material dentario inferior en relación al superior. Determinar la prevalencia de microdoncia del incisivo lateral superior y determinar la frecuencia de microdoncia en relación al lado y tamaño. Materiales y métodos: Se evaluaron 1345 modelos de pacientes pretratamiento de la Especialidad de Ortodoncia de la Universidad Au+ M tónoma de Nayarit entre los años 2002- 2012, de los cuales 504 cumplieron los criterios de inclusión. Se realizaron las mediciones de los anchos mesiodistales de los incisivos laterales superiores e inferiores y los resultados se resumieron mediante estadística descriptiva. Resultados: El 40,5% presenta ILS con microdoncia, 13% del lado derecho, 12,7% del lado izquierdo y 14,7% de forma bilateral. Para los ILS con microdoncia del lado derecho la media es de 6,6±0,4 mm, los del lado izquierdo es del 6,4±0,5 mm. Para los casos de ILS con microdoncia bilateral la media es 6,2±0,6 mm del lado derecho y del lado izquierdo 6,4±0,5 mm. Conclusion: El estudio refleja un alto porcentaje de microdoncia de ILS de acuerdo a los criterios de Binder y Cohen lo cual debe considerarse en la planeación del tratamiento ortodóncico.

Introduction and objective: Microdontia is an anomaly in which teeth are present with a size below normal. It presents problems involving arc length and facial aesthetics. When the width of the upper lateral incisor (ULI) is lower or equal or until 0.7 mm wider than the lateral incisor, the result would be mandibular excess material in relation to the upper. To determine the prevalence of ULI microdontia and determine the frequency of microdontia relative to size and side. Materials and methods: The universe of study was 1345 models of patients pretreatment of the Especialidad de Ortodoncia of the Universidad Autonoma de Nayarit of the years 2002-2012. Measurements were made of the mesiodistal widths of the upper and lower lateral incisors and applied descriptive statistics. Results: 40,5% of ULI present microdontia, on the right side 13%, 12,7% on the left and 14,7% bilaterally. For right side ULI with microdontia the average was 6,6+0,4mm, the left side was 6,4+0,5mm. For cases with bilateral microdontia the average was 6,2+0,6mm on the right side and 6,5+0,6mm on the left side. Conclusion: The study reflects a high percentage of ULI microdontia according to Binder and Cohen criteria which should be considered in the planning of orthodontic treatment.

Ectopic eruption of lower lateral incisors: initial treatment with removable appliance: case report / Erupção ectópica de incisivos laterais inferiores: tratamento inicial com aparelho removível: relato de caso

The aim of this article was to present an alternative to the treatment of lower lateral incisors with ectopic eruption using a removable appliance with digital springs. The treatment showed the efficacy of this appliance in the clinical case reported - early stage of mixed dentition - avoiding the development of a dental transposition and making the final stages with fixed appliance easier.

O objetivo deste artigo foi apresentar uma alternativa de tratamento para correção de incisivos laterais inferiores com erupção ectópica através do uso de aparelho removível com molas digitais. O artigo demonstrou a eficácia deste tipo de aparelho no caso clinico apresentado - estágio precoce da dentadura mista - evitando o estabelecimento de uma transposição dentária e facilitando a finalização do caso com o uso de aparelho ortodôntico fixo.

Endodontic treatment of maxillary lateral incisors with anatomical variations

Maxillary lateral incisors usually exhibit a single root with a single canal. However, maxillary lateral incisor teeth with unusual morphology of root canal system are frequently reported. These cases of variable root canal anatomy can be treated well by nonsurgical endodontic methods. A detailed description of root canal morphology is fundamental for successful endodontic treatment. Treatment using an operating microscope, radiographs from different angles, and cone-beam computerized tomography (CBCT) can produce more predictable endodontic outcomes.

Dentigerous Cyst Associated With Mandibular Lateral In Cisor- Report of A Rare Case.

The dentigerous cyst is a common type of odontogenic cyst that encloses the crown of an unerupted tooth by way of expansion of its follicle due to the collection of cystic fluid. Reported cases commonly involved the mandibular third molars and maxillary canines. They rarely involve the incisors. The highest incidence of dentigerous cysts occur during the second and third decades. We report a case of dentigerous cyst involving the permanent mandibular lateral incisor which is a rare occurrence. The pathogenesis, clinical and radiological features are discussed.

Treatment of a lateral incisor anatomically complicated with palatogingival groove / 대한치과보존학회지

OBJECTIVES: Palatogingival groove is a developmental anomaly that starts near the cingulum of the tooth and runs down the cementoenamel junction in apical direction, terminating at various depths along the roots. While frequently associated with periodontal pockets and bone loss, pulpal necrosis of these teeth may precipitate a combined endodontic-periodontal lesion. This case presents a case of a lateral incisor anatomically complicated with palatogingival groove. METHODS: Two patients with lesion associated with the palatogingival groove were chosen for this report. Palatogingival grooves were treated with different restoration materials with endodontic treatment. CONCLUSIONS: Maxillary lateral incisor with a palatogingival groove may occur the periodontal disease with pulpal involvement. Elimination of groove may facilitate the periodontal re-attachment and prevent the recurrence.