Clinical efficiency of the technique for restoring the contact surfaces of the posterior teeth considering the age features

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BACKGROUND: Esthetic restoration methods of the posterior teeth using composite materials currently used in dentistry can only be used to create contact in a shape of a point, which does not correspond to the age characteristics of the teeth of adult patients.

AIM: This study aimed to develop and introduce into the dental practice methods for creating and precise positioning of contact pads with size and location that correlated with the patient’s age.

MATERIAL AND METHODS: The quality of restorations of the contact surfaces of the teeth and contact points were assessed considering age characteristics. A total of 289 direct composite restorations of class II (Black) defects that were performed during the treatment of dental caries in 178 patients aged 20–59 years were conducted. The characteristics of 162 Black class II composite restorations performed with modeling contact pads/surfaces using contact formers were compared with the characteristics of 127 Black class II composite restorations performed using the traditional restoration technique.

RESULTS: In the study groups (restorations created using contact formers) 7 days after treatment, restorations were completely in line with the clinical requirements (4 of 4 points) according to the criteria for assessing the quality of the contact surfaces of the teeth and contact pads: 98.3%±1.02% of restorations; after 12 months, 92.5%±2.07%; after 24 months, 74.8%±3.41% of the investigated composite dental restorations. In the comparison groups, the values were as follows: 16.3%±3.28% of restorations (p <0.005); after 12 months, 11.3%±2.81% (p <0.005); and after 24 months, 9.8%±2.64% (p <0.005).

CONCLUSION: The clinical application of the developed technique of contact area modeling during posterior teeth caries treatment, taking into account the age characteristics and using the contact adapter of the original design, makes it possible to improve the quality of the restoration of the contact surfaces of the teeth, contact areas, interdental embrasures, and anatomy of the interdental spaces in general.

作者简介

Anastasia Permyakova

Smolensk State Medical University

Email: perm_86@list.ru
ORCID iD: 0000-0003-4490-2041

assistant of the department

俄罗斯联邦, 28, Krupskaya str., Smolensk, 214019

Alexander Nikolayev

Smolensk State Medical University

编辑信件的主要联系方式.
Email: anicolaev@inbox.ru
ORCID iD: 0000-0002-1378-6538

MD, Dr, Sci. (Med.), professor

俄罗斯联邦, 28, Krupskaya str., Smolensk, 214019

Anna Monakhova

Smolensk State Medical University

Email: antonova.a.n@mail.ru
ORCID iD: 0000-0003-1637-2733

assistant of the department

俄罗斯联邦, 28, Krupskaya str., Smolensk, 214019

Elena Petrova

Smolensk State Medical University

Email: elena-v-petrova@yandex.ru
ORCID iD: 0000-0002-1869-9409

MD, Cand. Sci. (Med.), associate professor

俄罗斯联邦, 28, Krupskaya str., Smolensk, 214019

参考

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  6. Loomans BAC, Opdam NJM, Roeters FJM, et al. Restoration techniques and marginal overhang in Class II composite resin restorations. Journal of Dentistry. 2009;37(9):712–717. doi: 10.1016/j.jdent.2009.05.025
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2. Fig. 1. "Reference map of localization of contact points and contact areas of posterior teeth in adult patients", reflecting age-related changes in the topography, shape and area of contact points and contact areas of posterior teeth [9].

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3. Fig. 2. Contact-former of original design [9]. a — working part 1×2 mm in size; S=2 mm2; b — working part 1,5×3 mm in size; S=4,5 mm2.

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4. Fig. 3. The method of restoring the age characteristics of contact points during the treatment of patients with caries of the contact surfaces of the posterior teeth by the method of direct composite restoration (demonstration on a phantom model): a — adaptation of a metal sectional matrix by a contact former; b — the matrix is deformed in the area of the contact point; c — adaptation of the matrix and the portion of the composite material by the contact-former in the area of the contact point and the contact surface of the tooth; d — photopolymerization of the composite from the side of the working part of the tool, without stopping the pressure on the contact-former; e — view of the tooth and composite material after photopolymerization and removal of the contact former; f — modeling of the restoration in the area of the chewing surface of the tooth using a relief-former ("TOP ВM", Russia).

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5. Fig. 4. Compliance of the clinical characteristics of the investigated composite restorations with the requirements according to the criterion “Quality of restoration of contact surfaces of teeth and contact points” (% of the total number of evaluated restorations, M±m).

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6. Fig. 5. Dynamics of clinical characteristics of the studied composite restorations according to the criterion “Quality of restoration of contact surfaces of teeth and contact points” (points, M±m).

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7. Fig. 6. Dynamics of the clinical characteristics of the studied composite restorations according to the criterion «Uniformity of the material structure, surface structure of the restoration» (points, M±m).

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