Ms. Diana F. Nica Profile

Diana F. Nica

at Clinica de Chirurgie oro-maxilo-faciala

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Proceedings Article | 12 June 2024 Paper

Differences in effectiveness and tooth sensitivity between modern bleaching techniques: clinical experiences

Maria Cristina Langa, Diana Florina Nica, Cosmin Sinescu

Proceedings Volume 13187, 131870K (2024) https://doi.org/10.1117/12.3021919

KEYWORDS: Hydrogen, Teeth, Semiconductor lasers, Medicine, Tissues, Safety, Porosity, Pharmacy, Optical coherence tomography, Laser scanners

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Dental whitening is a popular method among patients who want to improve the aesthetics of their smile. It is a relatively inexpensive technique and it has a significant impact on the patient’s confidence. Because of the popularity of this procedure, the scope of modern techniques is to minimize both the duration and the eventual adverse effects, such as postoperative sensitivity. A review was performed in order to compare the effectiveness between in-office conventional bleaching treatment and laser activated bleaching. Another aim of the study was to assess the dental sensitivity following these techniques. Three patients were treated using in-office conventional and diode laser-activated bleaching methods. Even though multiple studies have been concluded that the sensitivity levels are not higher using the conventional method in comparison to modern methods, the postoperative sensibility is related to the concentration and the contact time of the bleaching agent. Therefore, we concluded that laser activated bleaching is not significantly more efficient than the conventional method. However, in comparison to the latter method, the former one minimizes the duration of the procedure and decreases the number of sessions, as well as the dose of bleaching agent. Thus, it causes a lower sensitivity to the patient.

Proceedings Article | 22 March 2016 Paper

Platelet rich fibrin in jaw defects

Diana Nica, Emilia Ianes, Marius Pricop

Proceedings Volume 9670, 96700B (2016) https://doi.org/10.1117/12.2189921

KEYWORDS: Bone, Teeth, Computed tomography, Blood, Tissues, Surgery, Tomography, Medicine, Plasma, Wound healing

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Platelet rich fibrin (PRF) is a tissue product of autologous origin abundant in growth factors, widely used in regenerative procedures.

Aim of the study: Evaluation of the regenerative effect of PRF added in the bony defects (after tooth removal or after cystectomy)

Material and methods: The comparative nonrandomized study included 22 patients divided into 2 groups. The first group (the test group) included 10 patients where the bony defects were treated without any harvesting material. The second group included 12 patients where the bony defects were filled with PRF. The bony defect design was not critical, with one to two walls missing. After the surgeries, a close clinically monitoring was carried out. The selected cases were investigated using both cone beam computer tomography (CBCT) and radiographic techniques after 10 weeks postoperatively.

Results: Faster bone regeneration was observed in the bony defects filled with PRF comparing with the not grafted bony defects.

Conclusions: PRF added in the bony defects accelerates the bone regeneration. This simplifies the surgical procedures and decreases the economic costs.

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