Peripheral ossifying fibroma (POF) is a benign localized lesion originating from gingival and alveolar oral mucosa. Its origin can be cells of periodontal ligament. The lesions usually develop in women in their twenties. POF is a complex clinical and histological diagnosis due to its shared characteristics with many other conditions. In this paper, we presented a case of an atypical peripheral ossifying fibroma (POF) in the left lateral part of the mandible in a 70-year-old male patient who had two semicircular bridges supported on four implants in the upper and lower jaws. A review of CBCT and orthopedic imaging showed no visible intraosseous changes. Histological analysis revealed the diagnosis of POF. The case in question is interesting, as elaborated on in the discussion section of this paper because POF is usually found in female patients aged between 20 and 30 years.

The use of lasers in the treatment of infants and children, including patients with special needs, is considered to be effective in restor- ative procedures and soft tissue therapy. The use of different types of lasers in the therapy of individual tissues depends on the way the tissues interact with laser light and the desired effect for the purpose of treatment. Laser therapy has a positive antimicrobial effect and has a beneficial effect on enamel mineralization. Nd: YAG laser increases the resistance of enamel to demineralization which makes it a valuable therapeutic option in combination with tooth fluoridation. Lasers can be used in a wide range of vital and avital preparations of deciduous teeth pulp including pulp cuping, pulpotomy and pulpectomy. The use of lasers in dentistry is of particular importance in working with children. Lasers enable minimally invasive preparation of hard dental tissues with their preci- sion and selectivity. They also pose a lower risk of thermal tissue injuries during preparation compared to classical preparation tech- niques. Due to less contact between the therapeutic aid and tissue, pain and vibration during preparation are reduced. This achieves better patient compliance due to reduced dental anxiety and phobia in children. Greater patient comfort was achieved by the anal- gesic effect of erbium laser, due to the elimination of the need to use local anesthetics during the procedure. This paper presents a clinical study conducted on 120 patients aged 5 - 8 years. The participants were divided into two groups in which traditional pulpotomy and diode laser pulpotomy procedures were performed. The results of this study confirmed the clinical value of the use of diode lasers in pediatric and preventive dentistry.

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