Toward a perspective on orthodontic retention?

Melrose, Colin A.; Millett, Declan T

doi:10.1016/s0889-5406(98)70261-6

Cited by 134 publications

(80 citation statements)

References 84 publications

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“…Movements such as space closure in the absence of crowding, de-rotations, space redistribution/creation, and overbite reduction in the absence of a stable occlusal stop, are particularly prone to relapse. 17,51 Following orthodontic treatment, some retention is necessary for almost all patients and on occasions this may be life-long. [52][53][54] The optimum duration of retention prior to RBB placement, to prevent both tooth positional relapse of the abutment teeth and to secure the longevity of the restoration for these cases, remains undetermined.…”

Section: Discussionmentioning

confidence: 99%

Survival of resin-bonded bridgework provided for post-orthodontic hypodontia patients with missing maxillary lateral incisors

et al. 2006

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Objective To analyse the clinical performance and factors influencing the survival of resin-bonded bridgework provided for hypodontia patients with missing maxillary lateral incisors, following orthodontic treatment to open, maintain or redistribute the missing tooth space. Design A retrospective analysis of patients treated at a single centre using case notes with all patients invited for review to corroborate findings. Setting Departments of Orthodontics, Child Dental Health and Restorative Dentistry, Newcastle upon Tyne Dental Hospital and School. Subjects and methods Between 1989Between -2000 suitable hypodontia patients were identified of whom 45 had complete records. For these patients 73 resin-bonded bridges (RBBs) were provided. Following invitation, 24 patients attended for a review appointment. The survival of the RBBs, grade of operator providing treatment, duration of postorthodontic retention, the influence of design, presence of pontic contact in static and dynamic excursions, and the effect of habits were assessed. Life table, Kaplan-Meier and Cox regression analysis were carried out for the 73 RBBs with complete records. A separate analysis of the RBBs provided for patients who attended for the invited review did not show a higher failure rate than those patients who did not attend. Therefore both sets of data were combined. Results Of the 73 RBBs provided, 30 had debonded on at least one occasion (41.1%), six of these debonds were due to trauma (20%). The mean survival time of all the restorations was 59.3 months, with a median survival time of 59 months. Senior members of staff (Consultant, Senior Lecturer or Specialist Trainee) provided most restorations (n = 39) and achieved the highest mean survival of 72.6 months and median

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Section: Discussionmentioning

confidence: 99%

Survival of resin-bonded bridgework provided for post-orthodontic hypodontia patients with missing maxillary lateral incisors

et al. 2006

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“…1 The etiology of relapse is not fully understood, but it relates to a number of factors, including periodontal and occlusal factors, soft tissue pressures, and growth. 2 To prevent the teeth from returning to their initial positions (relapse), almost every patient who has orthodontic treatment will need to use either a removable or a fixed retainer.…”

Section: Introductionmentioning

confidence: 99%

Effects of Hawley retainers on consonants and formant frequencies of vowels

Kayikci

Akan

Ciğer

et al. 2011

The Angle Orthodontist

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Objective: To assess (1) whether Hawley retainers cause speech disturbance and (2) the duration of speech adaptation to Hawley retainers with objective and subjective tests. Materials and Methods: Twelve adolescents, aged 11.11 to 18.03 years, were included in this study. The assessment of speech sounds were done subjectively using an articulation test and objectively using acoustic analysis before and after Hawley retainer application. Results: After wearing Hawley retainers, patients showed statistically significant speech disturbances on consonants [ş] and [z]. Regarding the vowels, statistically significant changes were recorded with [i], while F1 increased and F2 and F3 decreased. Conclusions: The tongue changes its target position with the application of a foreign body within the mouth; however, in time it adapts to that new situation. (Angle Orthod. 2012;82:14-21.)

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“…1,2 En la población colombiana se han realizado diferentes estudios, como los de Thilander y colaboradores, 3 Franco y colaboradores, 4, Melrose y colaboradores 5 Botero y colaboradores, 6 Plazas y colaboradores, 7 y Mafla y colaboradores, 8 para determinar la prevalencia de las maloclusiones, y se ha encontrado mayor presencia de la maloclusión clase I acompañada de apiñamiento dental, seguida en su orden por maloclusión clase II y clase III. 9 De otro lado, el Estudio Nacional de Salud Bucal (ENSAB III) de 1999 hace un análisis integral de las alteraciones oclusales presentes en los tres planos del espacio, e indica la necesidad de intervención terapéutica para ellas.…”

Section: Introductionunclassified

“…1, 2 Several studies have been conducted in the Colombian population, such as the ones by Thilander et al, 3 Franco et al 4 Melrose et al, 5 Botero et al, 6 Plazas et al, 7 and Mafla et al, 8 to determine the prevalence of malocclusions, finding out a greater presence of class I malocclusion along with dental crowding, followed by class II and class III malocclusions. 9 On the other hand, the 1999 Estudio Nacional de Salud Bucal (ENSAB III) conducted a comprehensive analysis of the occlusal alterations occurring in all three space planes, indicating the need for therapeutic intervention on them.…”

Section: Introductionmentioning

confidence: 99%