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Prevalence of maxillary canine palatal impaction in 10- 11 years old children in Mashhad
A Sarraf Shirazi,F Ahrari,B Baghaee
Journal of Isfahan Dental School , 2008,
Abstract: Introduction: There are different reports about the rate of maxillary canine impaction in different communities and races. The aim of this study was to determine the prevalence of maxillary canine palatal impaction in 10-11 years old children in Mashhad.Methods and Materials: In this descriptive cross sectional study, 1472, 10-11 years old students in Mashhad were selected through random cluster sampling process. Dental age was considered as an important criterion in clinical diagnosis of impaction. Suspected children to impaction in clinical examination were referred to Mashhad Dental School for radiographic examination and preventive treatment. The condition of lateral incisor teeth was inspected in children who were suspected to impaction. The data were analyzed using descriptive statistics and Fischer's exact test.Results: Considering dental age, 5.5% of children were suspected to impaction in clinical examination and referred for radiographic examination. The prevalence of maxillary canine palatal impaction in the population evaluated was 1.1%. Impaction was more prevalent in girls comparing to boys. There was an association between palatal positions of maxillary canines and missing or peg shaped lateral incisors (p value
Orthodontic Management of Congenitally Missing Maxillary Lateral Incisors: A Case Report  [PDF]
Sergio Paduano,Iacopo Cioffi,Roberto Rongo,Antonello Cupo,Rosaria Bucci,Rosa Valletta
Case Reports in Dentistry , 2014, DOI: 10.1155/2014/731074
Abstract: This case report describes the orthodontic treatment of a woman, aged 15 years, with permanent dentition, brachyfacial typology, with congenitally missing maxillary lateral incisors. Multibracket straightwire fixed appliance was used to open the space for dental implant placement, and treat the impaired occlusion. The missing lateral incisors were substituted with oral implants. 1. Introduction The management of missing lateral incisor requires an integrated multidisciplinary approach [1]. Generally the choice between space opening with tooth replacement and space closure with canine substitution relies on several parameters to be considered before treatment planning. Commonly the choice is related to occlusal relationship (i.e., overjet and overbite, molar relationship), facial typology and profile, arch length, and tooth size discrepancies. The morphology of the canine, in terms of size and shape, and its colour [2] also may address different treatment strategies. Finally, patient expectation and compliance can influence the treatment planning. In case of unilateral tooth agenesis, space opening is often recommended to improve the aesthetics of patients and preserve smile symmetry. On the contrary, in case of bilateral agenesis, space closure and space opening could be both performed with respect to the issues previously reported [3–6]. Space opening is advised in low-angle subjects, whilst in high-angle individuals space closure should be preferred to preserve arch anchorage and avoid clock-wise rotation of the lower jaw. Retruded profiles should be better treated with space opening and tooth substitution, in order to improve labial sagittal relationships. This treatment strategy should be avoided in subjects with bimaxillary dental protrusion, in which it could result in worsening of the profile. Molar relationship should be also considered. Molar class I or class III tendency should be better treated with space opening to preserve ideal occlusal anterior and posterior relationship (i.e., canine and molar relationship) and establish a solid angle class I. In case of full cusp or partial molar class II, space closure should be preferred to facilitate orthodontic biomechanics and reduce treatment duration. A stable molar class II and canine class I are then obtained. However, in case of arch length discrepancies extractions in the lower arch should be considered, thus obtaining a molar and canine class I. Anterior relationship, that is, overjet and overbite, must be taken into account in terms of facilitation of biomechanics. Reduced overjet and
Inverted Impacted Primary Maxillary Incisors: A Case Report
B. Seraj,S. Ghadimi,G. Mighani,H. Zare
Journal of Dentistry of Tehran University of Medical Sciences , 2012,
Abstract: Tooth impaction rarely occurs in primary dentition. Most of the primary teeth impactions are seen in second molars. The purpose of this article is to present a 4-year-old girl with bilateral impaction of inverted primary maxillary central incisors which trauma had displaced their tooth germ before erupting.
Analysis of width/height ratio and gingival zenith in patients with bilateral agenesis of maxillary lateral incisor
Pini, Núbia Inocencya Pavesi;De-Marchi, Luciana Manzotti;Gribel, Bruno Fraz?o;Ramos, Adilson Luiz;Furquim, Laurindo Zanco;Pascotto, Renata Corrêa;
Dental Press Journal of Orthodontics , 2012, DOI: 10.1590/S2176-94512012000500013
Abstract: objective: the purpose of this study was to evaluate the width/length ratio and the gingival zenith (gz), by means of dental casts and digital caliper, in patients with missing maxillary lateral incisors after treatment. methods: the sample was composed of 52 subjects divided into 3 groups: brg (n = 18), patients with bilateral agenesis treated with tooth re-contouring; big (n = 10) patients with agenesis treated with implants and cg (n = 24), control group. the data were analyzed using shapiro-wilk, spearman correlation, wilcoxon, kruskal-wallis, t test and anova tests (p < 0.05). results: for the width/length ratio of the lateral incisors, big presented the lowest mean values (0.72 right and left), when compared with other groups. however, comparison between groups presented statistically significant differences for the right lateral incisor (big x cg) and for the canine (brg x cg). gz data evaluation showed the greatest difference for brg (0.5 right and 0.48 left). big (0.95 right and 0.98 left) and cg (0.98 right and 0.8 left) presented more similar values, nevertheless, without statistical difference (p > 0.05). gz data for the right and left sides of the smile were not considered statistically different. conclusion: although no statistical difference was found in the comparison between the groups, analysis of the descriptive values showed that group big showed the greatest difference in values with regard to width/length ratio. regarding gingival zenith, brg showed the greatest difference.
Relationship between maxillary canine intra-alveolar position and maxillary incisor angulation: a cone beam computed tomography study
Baratieri, Carolina;Canongia, Ana Carolina Portes;Bolognese, Ana Maria;
Brazilian Dental Journal , 2011, DOI: 10.1590/S0103-64402011000200010
Abstract: the aims of the present study were to evaluate the angulation and inclination of permanent maxillary incisors and to correlate the results to the intra-alveolar permanent maxillary canine position during mixed dentition, using cone beam computed tomography (cbct). the subjects were 30 children aged 7 to 10 years in the inter-transitory period of mixed dentition (permanent incisors and first molars erupted; primary canines, first and second molars erupted; and permanent canines intraosseous). the cbct scans were obtained and, using the dolphin imaging? software - version 11.0, 3d images were reconstructed and the measurements were performed. the angulation of the right and left lateral and central maxillary incisors was measured in relation to the sagittal plane and their inclination was measured in relation to the coronal plane. the intra-alveolar height of the right and left maxillary canines was measured from the cusp tip to the axial plane. pearson's correlation at 5% significance level showed positive correlation between the canine height and the lateral incisor angulation. it was concluded that the intra-alveolar position of the maxillary canines has a direct influence on the angulation of maxillary incisors, especially the lateral incisors.
The unerupted maxillary canine -A review of literature
OO daCosta
Nigerian Journal of Clinical Practice , 2002,
Abstract: Objective: To compare the effectiveness of topical fluoride application and fluoride The purpose of this paper is to bring about a better appreciation of causative factors and those influencing management decisions of the unerupted maxillary canine. It reviews current literature of the anomaly of the unerupted maxillary canine, which is one of the most frequently displaced teeth in the maxillary arch. Aetiological factors of this anomaly are widely varied and include advanced state of development at an early age, trauma, dentoalveolar disproportion, absence or reduction in size of the upper lateral incisor and genetics. The possible complications of canine impaction are also discussed. Methods of assessing the unerupted canine both clinically and radiographically are highlighted along with ways of predicting and preventing the anomaly. Finally it details management of the problem including factors to be taken into consideration prior to treatment and the various treatment options available to date. The need for early assessment of patients presenting in the dental clinic cannot be over-emphasized in the possible prevention of this anomaly. The observation of one or more of the possible causative factors as well as delayed eruption of the permanent canine or prolonged retention of its predecessor should also be cause for further investigation. Choice of the various treatment options available is dependent on a number of factors including patient`s attitude, the position of the unerupted tooth relative to the standing teeth as well as the present occlusion of the patient. KEY WORDS: Maxillary Canine, Unerupted, Review. Nigerian Journal of Clinical Practice Vol.5(2) 2002: 91-98
Orthodontic replacement of maxillary central incisors by lateral incisors: Issues to be considered.
Ashok Kumar Jena,Satinder Pal Singh,Ashok Utreja
Hellenic Orthodontic Review , 2010,
Abstract: Management of cases with extraction of single or both maxillary central incisors are very occasional in orthodontics. Among various treatment modalities, closure of the extraction space by substitution of ipsilateral lateral incisor for the central incisor is usually patient satisfactory. Various issues related to optimum esthetics, static and functional occlusion, restoration and individualization of orthodontic appliances in the management of such cases are highlighted. The clinical management of a case with extraction of both maxillary central incisors is discussed.
Facial Soft Tissue Changes after Maxillary Impaction and Mandibular Advancement in High Angle Class II Cases  [cached]
Bar?? Aydil, Nedim ?zer, Gülnaz Mar?an
International Journal of Medical Sciences , 2012,
Abstract: The aim of this study was to determine the vertical and anteroposterior alterations in the soft, the dental and the skeletal tissues associated with the facial profile after Le Fort I maxillary impaction in conjunction with sagittal split osteotomy for mandibular advancement performed in patients with a high angle Class II skeletal deformity. The study population consists of 21 patients (11 females and 10 males, mean age 24.5±1.6 years) who underwent Le Fort I maxillary impaction in conjunction with sagittal split osteotomy for mandibular advancement. Lateral cephalograms were obtained prior to the surgery and 1.3±0.2 years postoperatively. Wilcoxon test was performed to compare the pre- and postsurgical cephalometric measurements. Pearson correlation test was carried out to determine the relative changes in skeletal, dental and the facial soft tissues. The insignificant decrease in the nasolabial angle was correlated with the significant decrease in the vertical position of the nose due to the nasal protraction noticed after bimaxillary surgery. The retraction of both the upper lip and the upper incisors was correlated with the insignificant decrease in the columella-lobular angle. The insignificant decrease in both the vertical height of the mandibular B point and the lower incisors was correlated with the insignificant decrease in vertical height of the soft tissue pogonion, attributable to the resulting superior movement of the soft tissues of the chin and the counter clockwise rotation of the mandible after maxillary impaction and bilateral sagittal split osteotomy, respectively. Le Fort I maxillary impaction in conjunction with mandibular sagittal split osteotomy for mandibular advancement significantly affected the vertical and anteroposterior positions of the maxilla and the mandible, respectively. When performed in combination, these surgical techniques may efficiently alter the position of upper incisor and the nasal position in both vertical and anteroposterior directions. Bimaxillary orthognathic surgery seems to be an efficient method for obtaining satisfactory results in the appearance of the soft, the dental and the skeletal tissues associated with the facial profile in patients with high angle Class II skeletal deformity.
An Unusual Occurrence of Multiple Dental Anomalies in a Single Nonsyndromic Patient: A Case Report  [PDF]
N. B. Nagaveni
Case Reports in Dentistry , 2012, DOI: 10.1155/2012/426091
Abstract: Dental anomalies are the formative defects caused by genetic disturbances or environmental factors during tooth morphogenesis. Simultaneous occurrence of various multiple anomalies has been reported previously, particularly in cases of chromosomal abnormalities that often manifest with multisystem involvement. Very few cases of multiple anomalies have been documented in patients with no known generalized abnormalities. The present paper shows an unusual occurrence of a combination of dental anomalies like mandibular canine transmigration, taurodontism in permanent mandibular molars, congenital agenesis of 14 numbers of permanent teeth excluding third molars, canine impaction, primary molars with pyramidal roots, midline diastema and generalized microdontia in an apparently normal 13-year-old Indian girl. 1. Introduction Odontogenic anomalies are the formative defects caused by genetic disturbances or environmental factors during tooth morphogenesis. Occurrence of multiple anomalies in individuals or families, without evidence of other systemic manifestations or syndromes have rarely been reported [1–3]. Desai et al. [1] described concomitant occurrence of idiopathic generalized short root anomaly and microdontia, taurodontism of posterior teeth, obliterated pulp chambers, infected cyst, and multiple dens invaginatus. Dash et al. [2] presented a case of talon cusp affecting the mandibular central incisor and maxillary lateral incisor, an inverted impacted migrating mandibular second premolar, and hypodontia. Recently Suprabha et al. [3] showed presence of multiple dens invaginatus, generalized enamel hypoplasia, generalized microdontia, root resorption and multiple periapical lesions, and supernumerary teeth. Preeruptive, intraosseous migration of a tooth across the midline is termed “transmigration” [4–6]. It is evident from the literature that it occurs more frequently in females than in males. This phenomenon usually affects the permanent canine, premolar, or lateral incisors with mandibular canine being the most frequently involved tooth [4–6]. The reported patient age at presentation of the transmigrant canine varies from 8 years to 69 years and may occur either unilaterally or bilaterally [4]. The causes underlying this condition remain unclear although a number of theories have been proposed. It is generally accepted that the impacted tooth follows the trajectory of least resistance. The tooth moves in the direction of the crown, and the mesial inclination of the follicle makes it possible to migrate toward the contralateral side. However,
A Review Of 39 Cases Of Unerupted Maxillary Incisors
OO Sanu, OT Temisanre
Nigerian Journal of Clinical Practice , 2003,
Abstract: Objective: To study the prevalence, aetiology, gender and site distribution of unerupted maxillary incisors at Lagos University Teaching Hospital, Lagos Methods: Clinical records of 2,240 patients that attended the Orthodontic Clinic of the Lagos University Teaching Hospital, Lagos Nigeria between June 1998 and December 2000 were retrieved and reviewed. Date extracted included age, gender, tooth type(s) and aetiological factors causing delayed eruption were recorded. Result: Out of 2,240 patients seen during the period of the study, 39 cases (1.7%) presented with a total of 41 unerupted maxillary incisors. Maxillary right central incisor was found to be most frequently involved tooth 16 (39.0%). The left central incisor involvement was in 13 (31.7%) of maxillary incisors. There was bilateral involvement of the central as well as the lateral incisors in 2 cases representing 4.9% each of the samples studied. Of the lateral incisors, the right one was similarly more often affected (12.2%) than the left one (7.3%). The presence of isolated odontomes was the most common cause of lack of eruption of the maxillary incisors with a prevalence of 20.5%. Other factors causing delayed eruption were odontomes with retained primary tooth (15.4%), presence of supernumerary teeth of especially the mesiodens type (15.4%), retained primary teeth (12.8%), rotation and trauma constituting 7.7% each. An inverted tooth that failed to erupt was recorded in only one case of the population (2.6%). Fibrous tissue delayed eruption of the maxillary incisors in 5.1% and in about 12.8% the etiological factor could not be ascertained Conclusion: All the teeth that have not erupted six months after its normal eruption date should be subjected to radiological examination to ascertain any possible cause. The earlier the removal of the causative factor preventing eruption of the maxillary incisors, the better is the prognosis KEY WORDS: Unerupted, Teeth, Maxillary and Incisors. Nigerian Journal of Clinical Practice Vol.6(1) 2003: 60-64
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