Efficacy of Dental Bleaching with Diode Laser, Led Irradiation and Chemical Activation System: a Comparative Study

Abstract

Aim: To compare the effectiveness and safety of various methods of professional teeth bleaching using light and chemical activation systems in an in vivo study. Materials and Methods: Teeth whitening was performed on 48 patients aged 20 to 35, divided into 4 groups. In patients of group 1 for dental bleaching a diode laser activation was used, group 2 – LED/gel activation, group 3 – chemical whitening with the following remineralization therapy, group 4 – chemical whitening without remineralization therapy. The study of the effect of bleaching systems on the hard tooth tissues was carried out by index assessment, determination of biochemical parameters of an oral fluid. Results: Laser bleaching of the vital teeth was significantly more effective than the other methods with 95% confidence level and did not affect the structure of hard dental tissues and mineral exchange of the oral fluid. LED irradiation has a high whitening effect, but leads to dentin hypersensitivity and a decrease in phosphorus and alkaline phosphatase of oral fluid. Chemical bleaching causes a decrease in enamel resistance, the occurrence of tooth sensitivity, violation of mineral exchange of oral fluid, therefore; it requires combined use with local remotherapy. Conclusions: Laser teeth bleaching is the effective and safe method in management of discolored teeth. A positive result of its use can be considered an improvement of color change of the teeth by 3.33 shades compared to chemical bleaching, enamel stability, low values of dental hypersensitivity indices, no changes in biochemical parameters of the oral fluid.

Prevalence of musculoskeletal and nervous system disorders among dentists

“…Незважаючи на те, що сучасна стоматологія має значні досягнення у диджиталізації і все частіше використовуються сучасні засоби лікування хворих [5,9], у стоматологічній практиці залишається багато ризиків, що можуть нести загрозу для здоров'я лікаря [12,14]. Серед найбільш сприятливих факторів для виникнення професійних захворювань стоматолога є: сидяча, багатогодинна робота з високим рівнем концентрації, робота з тривожними пацієнтами, вплив мікробних аерозолів, радіації, шуму та різних хімічних речовин, що використовуються в клінічній стоматологічній практиці тощо [1,4,13].…”

Diagnosis of Internal Root Resorption: Clinical Manifestations and Radiological Features

“…The causes of resorption are various, among them tooth trauma, bruxism, endodontic and periodontal diseases, dental bleaching, it can occur after coronal pulp amputation and capping the root pulp with calcium hydroxide, as a result of treatment with braces or other orthodontic appliances, which is associated with aggressive and rapid tooth movement, and also in the presence of specific diseases and disorders: genetic disorders and hereditary diseases, endocrine pathology, disorders of osteogenesis processes, after radiation therapy, etc. [8,9,10].…”