Abstract:Anterior spaces may interfere with smile attractiveness and compromise dentofacial
harmony. They are among the most frequent reasons why patients seek orthodontic
treatment. However, midline diastema is commonly cited as a malocclusion with high
relapse incidence by orthodontists.ObjectivesThis study aimed to evaluate the stability of maxillary interincisor diastemas
closure and the association of their relapse and interincisor width, overjet,
overbite and root parallelism.Material and MethodsSample comprised … Show more
“… 4 15 However, some mesial inclination of central incisors is preferred. 14 One follow-up study reported relapse of median diastema in 49% patients and found wider initial width of diastema and fremitus of maxillary incisors strongly associated with space opening. 16 Though the prevalence of mesiodens is reported to be only 0.15 to 2.2% of the population with a preference to males, 17 their presence in the maxillary arch could be deleterious from the esthetic and functional points of view.…”
Section: Discussionmentioning
confidence: 98%
“…Another study found midline diastema recurrence in 60% of the sample with stronger correlation of relapse with larger initial diastema width, relapse of overjet, and intermaxillary osseous cleft and concluded that midline diastema closure is highly unstable, hence, needs lifetime wear of maxillary fixed retainer. 14 Inadequate root parallelism at the end of treatment has been also cited as a reason for median diastema relapse. 4 15 However, some mesial inclination of central incisors is preferred.…”
AimThe aim of this study is to present a case of large maxillary median diastema closed by bodily movement of central incisors using Bapat power arm (BPA).Materials and methodsAfter extraction of mesiodens, a power chain with a force of 120 gm was applied to BPA ligated to preadjusted edgewise brackets bonded to maxillary central incisors to move them over round steel wire for closure of resultant diastema. Bonded retainer was placed after the closure of median diastema.ResultsThe median diastema was completely closed in 5 months period with almost bodily movement of incisors, which was confirmed by periapical X-ray.ConclusionBapat power arm was efficient in closing diastema without any discomfort or injury and was well accepted by the patient.How to cite this articleBapat SM, Singh C, Bandejiya P. Closing a Large Maxillary Median Diastema using Bapat Power Arm. Int J Clin Pediatr Dent 2017;10(2):201-204.
“… 4 15 However, some mesial inclination of central incisors is preferred. 14 One follow-up study reported relapse of median diastema in 49% patients and found wider initial width of diastema and fremitus of maxillary incisors strongly associated with space opening. 16 Though the prevalence of mesiodens is reported to be only 0.15 to 2.2% of the population with a preference to males, 17 their presence in the maxillary arch could be deleterious from the esthetic and functional points of view.…”
Section: Discussionmentioning
confidence: 98%
“…Another study found midline diastema recurrence in 60% of the sample with stronger correlation of relapse with larger initial diastema width, relapse of overjet, and intermaxillary osseous cleft and concluded that midline diastema closure is highly unstable, hence, needs lifetime wear of maxillary fixed retainer. 14 Inadequate root parallelism at the end of treatment has been also cited as a reason for median diastema relapse. 4 15 However, some mesial inclination of central incisors is preferred.…”
AimThe aim of this study is to present a case of large maxillary median diastema closed by bodily movement of central incisors using Bapat power arm (BPA).Materials and methodsAfter extraction of mesiodens, a power chain with a force of 120 gm was applied to BPA ligated to preadjusted edgewise brackets bonded to maxillary central incisors to move them over round steel wire for closure of resultant diastema. Bonded retainer was placed after the closure of median diastema.ResultsThe median diastema was completely closed in 5 months period with almost bodily movement of incisors, which was confirmed by periapical X-ray.ConclusionBapat power arm was efficient in closing diastema without any discomfort or injury and was well accepted by the patient.How to cite this articleBapat SM, Singh C, Bandejiya P. Closing a Large Maxillary Median Diastema using Bapat Power Arm. Int J Clin Pediatr Dent 2017;10(2):201-204.
“…While midline diastema relapse occurred in 60% of the sample, lateral diastemas closure remained stable after treatment. Only initial diastema width and overjet relapse showed association with relapse of midline diastema [46].…”
Section: Morais Et Al Reported No Association Between Relapse Of Intmentioning
The prevalence of diastemas varies greatly according to age and ethnic group. In permanent dentition, it varies from 1.7 to 38%. Its etiology is multifactorial. In the deciduous and mixed dentition phases, interincisal diastemas are considered normal. There are several approaches used in the treatment of anterosuperior diastemas, which vary according to the present etiologic factor. Orthodontic treatment also has the function of treating any other associated occlusal problem and helping in the elimination of parafunctional habits. Some authors agree that orthodontic closure of diastemas without subsequent surgery for removing the abnormal labial brake greatly increases the frequency of relapse in the postretention period, while others concluded that the fibrotomy of periodontal fibers together with the retainer had a positive effect on the stability of space closure. Buccal and lingual teeth inclinations have greater tendency to relapse, while mesial and distal movements, with a period of containment, are stable movements. Removable retainers are not considered a good choice. Depending on the type of initial malocclusion, the use of retainers throughout life is recommended. Fixed retention is often cited as the only satisfactory method to promote stability at the closure of previous diastemas.
“…Depending on the aetiology, the treatment may also take place in a different way, i.e. orthodontic treatment [13,17,24] or surgical treatment [32,34] of diastema.…”
Background:One of the cause of the maxillary midline diastema (MMD) may be discrepancy between teeth and maxilla dimension. That can relate to two situations: when teeth have correct size but maxilla is too large or maxilla bone is in the proper size but teeth have reduced dimensions (microdontia). The present study has been conducted to investigate the differences in the linear dimensions of upper central and lateral incisors and canines in diastematic dentition and to compare them with the control group without diastema.
Material and methods:The study was conducted on Caucasian individuals (n=102) divided into two groups: study group with MMD (n=50) and control group without MMD (n=52). The following measurements were done by digital calliper on their plaster models: 1. Width in the widest mesiodistal portion for upper right and left central incisors, lateral incisors and canines.
Length in the longest apico-coronal portion for the same teeth.Results: Statistical analysis showed that comparison of widths of left canines were significant. In the study group widths of left canines were lower than in the control group. Statistically significant differences in the length were observed for central incisors and canines in both sides. All measurements were lower in the diastema group of patients.
Conclusions:Patients with diastema were characterized by incorrect tooth dimensions. The central incisors and upper canines were shorter in this group. Aesthetic closing of the diastema requires not only widening the crowns of the front teeth but also their elongation.Key words: maxillary midline diastema (MMD), length of incisors, width of incisors, length of canines, width of canines
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