Changes of bite force and occlusal contacts in the retention phase of orthodontic treatment: A controlled clinical trial

Varga, Suzana; Špalj, Stjepan; Milošević, Sandra Anić; Varga, Marina Lapter; Meštrović, Senka; Zrinski, Magda Trinajstić; Šlaj, Mladen

doi:10.1016/j.ajodo.2017.03.028

Cited by 27 publications

(51 citation statements)

References 42 publications

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“…However, in Sultana et al’s 4 study in which the dental prescale system, that can measure the maximum bite force, was used in the examination of maxillary circumferential retainer/mandibular bonded flexible spiral wire, a significant increase in the molar region and insignificant changes in anterior and premolar regions were determined. Similarly, in another study 3 in which maximum bite force of maxillary/mandibular Vacuum‐formed retainer, maxillary/mandibular Hawley retainer and maxillary Vacuum‐formed retainer/mandibular Bonded retainer groups were evaluated using an occlusal force metre unilaterally on the mandibular first molar, a significant increase was detected in all groups with less increase in the Vacuum‐formed retainer group. Although no study in the literature has evaluated the occlusal force distribution with Bonded retainers, in the present study a significant increase in left dental arch force and a decrease in right dental arch force were detected at T0‐T1 and T0‐T2 time intervals.…”

Section: Discussionmentioning

confidence: 91%

“…Quantitative assessment of occlusal surface area using photocclusion, dental prescale and T‐Scan systems can also provide useful information about occlusal force distribution on the dental arches 3,15 . However, it was observed that these systems have some disadvantages, as well as many advantages.…”

Section: Discussionmentioning

confidence: 99%

“…Since orthodontic appliances tied teeth together during active treatment, they do not allow functional occlusion completely 3 . After removal of the appliances, the released teeth came into full function, slight tooth movements occurred for achieving a balanced position in the oral musculoskeletal environment, and increased interdigitation was observed 3,4 . At this point, appliances used in the retention phase are desired to not interfere with the interdigitation and allow settling.…”

Section: Introductionmentioning

confidence: 99%

“…However, Hawley retainers have less retentive elements that reach the occlusal surfaces compared to Vacuum‐formed retainers. In Hawley retainers, the labial bow and Adams clasps pass through the distal margin of canine and mesial and distal margins of the molar teeth, respectively 3,10 . Unlike these, Bonded retainers are only bonded to lingual or palatinal surfaces of anterior teeth and cover no surfaces of posterior teeth 10,11 …”

Section: Introductionmentioning

confidence: 99%

“…In previously published studies, it has been observed that generally silicon materials 7,10‐13 were used in the evaluation of number of occlusal contacts, while in two separate studies plastic foils 3 and photocclusion technique 14 were used. However, occlusal surface area and occlusal force distribution, which are the indicators of how occlusal contacts acts functionally, were only evaluated in two studies.…”

Section: Introductionmentioning

confidence: 99%

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Changes in occlusal surface area and occlusal force distribution following the wear of vacuum‐formed, hawley and bonded retainers: A controlled clinical trial

Alkan

Kaya

2020

J of Oral Rehabilitation

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Occlusal stability which is a major goal of orthodontic treatment starts at diagnosis and does not end at the insertion of retention appliances. 1 Both structural and functional terms are used to describe the occlusal stability. While the absence of occlusal and skeletal relapse is an indication of structural stability, good interdigitation with multiple tooth contacts and absence of occlusal interferences indicate functional stability. 2 Abstract To evaluate the changes in occlusal surface area (OSA) and occlusal force distribution (OFD) following the wear of Vacuum-formed (VFR), Hawley (HR) and Bonded (BR) retainers, using T-Scan III. A total of 60 subjects using three different maxillary and mandibular orthodontic retainers, VFR (n:20), HR (n:20) and BR (n:20), were included in this study. The changes in OSA and OFD were evaluated using the T-Scan III. The evaluations were made 2 hours after debonding orthodontic appliances (T0) and in the 3rd (T1) and 6th (T2) months of the retention phase. For left (LDA), right (RDA)and posterior dental arches (PDA), intragroup comparison of OSA showed significant increase in the VFR and HR groups at T1-T2 and T0-T2 time intervals and in the BR group at T0-T1 and T0-T2 time intervals. For the anterior dental arch (ADA), only the increase in the HR group at T0-T1 and T0-T2 time intervals was found significant.When compared between the groups, the changes between HR and BR groups detected at T1-T2 time interval for the RDA and at T0-T1 and T0-T2 time intervals for the ADA were found significant. Intragroup comparison of OFD displayed significant changes only in the BR group. At T0-T1 time interval, the decrease in the ADA and the increase in the PDA were found significant. Also, intergroup OFD comparison exhibited significant differences between HR and BR groups at T0-T1 time interval for ADA and PDA. Although no significant differences were found between the VFR group, the increase in OSA occurred faster in the PDA in the BR group, whereas in the ADA it was significant only in the HR group. K E Y W O R D S fixed, hawley, retention, T-Scan III, vacuum-formed | 767 ALKAN ANd KAYA

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Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%