Comparative Study on the Efficiency of Intermaxillary Elastic Polymers used in the Treatment of Skeletal Class II Malocclusions in Growing Patients

Vaida, Luminiţa Ligia; Dima, Raluca; Cuc, Emilia Albiniţa; Negruțiu, Bianca Maria; Moca, Abel Emanuel; Lile, Ioana Elena; Daragiu, Delia; Zalana, Alexandru; Albert, E; Todor, Bianca Ioana

doi:10.37358/mp.19.2.5183

Cited by 7 publications

(5 citation statements)

References 24 publications

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“…In patients who initially presented class II or III malocclusions (especially skeletal imbalances) for whom the orthodontic treatment included methods for correcting these malocclusions (eg. class II or class III elastics or orthopaedic devises) for the contention of the result we used fixed lingual retainer simultaneously with positioner or removable appliances (such as myobraces/ myofunctional appliances) to stabilize the intermaxillary relationship, the impression of the lower dental arch for making the positioner being taken with the fixed retainer in place [44,45]. The fact that these retainers can be worn together with positioners or myobraces is another advantage.…”

Section: Resultsmentioning

confidence: 99%

Evaluation of the Efficiency of Three Different Types of Bonded Retainers Used in Orthodontics

Vaida¹,

Feștilă²,

Moca³

et al. 2019

Rev. Chim.

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The bonded retainers are mainly used for the mandibular dental arch. This study aims to analyse the efficiency of three different types of fixed retainers, multistranded 0.0195-in wire, Australian wire and Starbond CoS laser sintering retainer, as well as the relapse rate for each type of retainer used over a period of two years. The sample consisted of 159 patients, of whom 55 patients (Group 1) had multistranded 0.0195-in wire, 53 patients (Group 2) Australian wire, and 51 patients (Group 3) laser-sintering retainers. 16 partial or complete detachments were recorded in the first year of the retention phase, of which 5 retainers from Group 1, 6 from Group 2 and 5 from Group 3, in the case of lasers-sintering retainers only total detachments were noticed, and 2 of the multistranded retainers suffered deformations. The results show that there are no statistically significant differences between the three types of retainers in the first year of retention period, but laser-sintering retainer had a statistically significant better evolution compared to multistranded retainer (p=0.018) after two years of retention. No statistically significant differences were found between the three types of retainers regarding the rate of relapse (10.9% for Group 1, 7.5% for Group 2 and 7.8% for Group 3). In the second year of the retention phase, the relapse rate did not present a statistically significant change from the first year, but it increased slightly in patients from Group 1 and it decreased slightly in patients from Group 3. No fixed retention system is perfect, everything has its drawbacks.

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Section: Resultsmentioning

confidence: 99%

Evaluation of the Efficiency of Three Different Types of Bonded Retainers Used in Orthodontics

Vaida¹,

Feștilă²,

Moca³

et al. 2019

Rev. Chim.

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“…In our opinion, the fact that a slight degree of wear is installed in the areas with more intense occlusal contact points allows a continuation of the settling phase, which has a beneficial effect on the occlusal stability. One of the important advantages of polyethylene polymers used for VFRs retainers is that it allows acrylic pads to be bonded to the material in the anterior region (near the upper lateral incisors) on the upper retainer and in the posterior region on the lower VFRs, which allows application in the retention phase of light class II elastics (or light class III elastics, with a reverse orientation) in patients who have used class II or class III mechanics and present the risk of relapse of mandibular-maxillary relationships [ 26 , 27 ]. We inform patients that VFRs may change their translucency after one year of use, color changes may occur, so it is often necessary to restore them after the first year of retention.…”

Section: Discussionmentioning

confidence: 99%

The Behavior of Two Types of Upper Removable Retainers—Our Clinical Experience

et al. 2020

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The Hawley retainer (HR) and the vacuum-formed retainer (VFR) are the most common removable retainers in orthodontic treatments. The aim of this retrospective study was to comparatively analyze the behavior of two types of removable retainers—HRs and VFRs—in terms of retainer damage, loss, and the rate of installation of mild or severe relapse that required recourse to certain therapeutic interventions. The study was performed on 618 orthodontic patients aged 11–17 years, average age 13.98 ± 1.51, out of which 57% were patients having VFRs and the remaining 43% having HRs in the upper arch. We performed an analysis of the two groups of patients—HRs group and VFRs group—at 6 months (T1) and at 12 months (T2) after the application of the retainer. The results showed that 6% of all the retainers were damaged, mostly at T2 (54.1%). Seven percent of all the retainers were lost, mostly at T1 (58.1%). Of all the patients, 9.1% presented mild relapse, mostly at T1 (58.9%), while 2.6% presented severe relapse. The VFRs were significantly more frequently associated with the occurrence of damage than the HRs (p < 0.001). Severe relapse was more frequently associated with the HRs rather than with VFRs (p < 0.05).

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“…We have not included within the study children with orthodontic treatment because both the removable appliances ( made of thermoplastic and thermo set resins) as well as fixed appliance and auxiliary elements (hyrax, distaliser, myofunctional trainer) favorizes additional retention of bacterial plaque. Also, the component elements of orthodontic appliances on the vestibular surface of the teeth make it impossible to determine the OHI-S Index [21][22][23].…”

Section: Experimental Partmentioning

confidence: 99%

Assessment of Oral Hygiene Status by Using Disclosing Agents to Schoolchildren from Rural Areas

Todor¹,

Vaida²,

Moca³

et al. 2019

Rev. Chim.

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Poor oral hygiene, in terms of gingival bleeding and increasing accumulation of plaque and calculus with increasing age, have been reported among school-aged children, in both developed- and developing countries, causing unsatisfactory oral health among children. The aim of this study was to determine oral hygiene status by calculating Oral Hygiene Index -Simplified (OHI-S), using disclosing agents, and to examine whether socio-economic and behavioral correlates of oral hygiene status, in school children from rural areas, N-W Romania. For the highlighting of the bacterial plaque were used two tone dental plaque disclosing agent, which contains Erythrosine and Brilliant Blue FCF. The OHI-S index is divided according to its values in several categories as follows: very good hygiene = OHI-S Index between 0 and 1; good hygiene = OHI-S Index between 1.1 and 2; unsatisfactory hygiene = OHI-S Index between 2.1 and 3; poor hygiene = Index OHI-S between 3.1 and 6. The average value of the OHI-S index in children in rural areas of N-W Romania was 1.78, a higher value than most of the values identified in the bibliographical references. Using disclosing agents may improve oral health status in schoolchildren, by increasing the awareness of their personal oral hygiene condition.

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Comparative Study on the Efficiency of Intermaxillary Elastic Polymers used in the Treatment of Skeletal Class II Malocclusions in Growing Patients

Cited by 7 publications

References 24 publications

Evaluation of the Efficiency of Three Different Types of Bonded Retainers Used in Orthodontics

Evaluation of the Efficiency of Three Different Types of Bonded Retainers Used in Orthodontics

The Behavior of Two Types of Upper Removable Retainers—Our Clinical Experience

Assessment of Oral Hygiene Status by Using Disclosing Agents to Schoolchildren from Rural Areas

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