INTRODUCTION:The correction of the gingival recession is of esthetical and functional significance, but the tissue regeneration can only be confirmed by a histological examination.AIM:This study aims to make a comparison between the free gingival graft and the autograft.MATERIAL AND METHODS:This study included 24 patients with single and multiple gingival recessions. Twelve patients were treated with a free gingival graft and the other twelve with a micrograft. Six months after the surgical procedure, a micro-punch biopsy of the transplantation area was performed. The tissue was histologically evaluated, graded in 4 categories: immature, mature, fragmented and edematous collagen tissue. The elastic fibres were also examined and graded in three categories: with a normal structure, fragmented rare and fragmented multiplied.RESULTS:Regarding the type of collagen tissue that was present, there was a significant difference between the two groups of patients, with a larger number of patients treated with a micrograft showing a presence of mature tissue, compared to the patients treated with a free gingival graft. A larger number of patients in both of the groups displayed elastic fibres with a rare fragmented structure; 33.3% of the patients showed a normal structure; 50% demonstrated a normal structure.CONCLUSION:The patients treated with a free gingival graft showed a larger presence of fragmented collagen tissue and fragmented elastic fibres, whereas a mature tissue was predominantly present in the surgical area where a Geistlich Mucograft was placed.

BACKGROUND:The morphology of the retention tooth often does not correspond with the required design; hence there is often an indication for enamel recontouring or other restorative procedures.AIM:The study aimed to determine the impact of changing the path of insertion of the prosthesis by reshaping the anatomical and morphological structures of the natural teeth predetermined for the retention of the prosthesis.MATERIAL AND METHODS:The group of 40 patients with Class II, Subclass 1 according to Kennedy was formed, and 120 approximal surfaces of retention teeth were obtained. Two different types of prostheses were made on the models: one group in the zero point position of the model, and another group in the zero position of the model, with changing of the direction of input at an angle of 2°.RESULTS:The difference between the established and theoretical normal distribution of frequencies was tested with the Kolmogorov-Smirnov and Lilliefors tests (r < 0.10; r < 0.01). The first group showed a retention force of 0.08 N. In the second group the retention force was 0.94 N.CONCLUSION:It could be concluded that the change in the path of insertion of the dental prosthesis with conservative restorations as composite inlays, as well as the accurate extension of the prosthesis onto guiding plane surfaces, will undoubtedly increase the retention force of the prosthesis.

A prosthetic treatment of the edentulous mandible can be very challenging. In cases with inadequate buccal depth, a necessary deepening of the oral vestibule can be achieved by surgically detaching the soft tissue attachments. A preprosthetic vestibuloplasty is usually done surgically by scalpel. With the permanent advancement of laser technology, a laser vestibuloplasty has become a preferred surgical procedure. The aim of this report was to present individuality of a mandible vestibuloplasty performed with Er.YAG laser.A 69-year-old patient was referred to the University Department of oral surgery after several previous unsuccessful attempts to stabilize his lower denture. The intraoral assessment revealed complete mandibular edentulism and a shallow vestibule with sufficient bone height in the anterior region. Since the patient's financial resources precluded dental implants, mandible anterior vestibuloplasty was planned to deepen the vestibule thus increasing the anatomic basis for prosthetic rehabilitation. The vestibuloplasty was performed with Er-Yag Laser (Fotona Fidelis III). The laser ablation started at the mucogingival junction. The soft tissue bands were ablated layer by layer till the desired vestibular depth was achieved. There was no need for suturing. No protective barrier was placed. The postoperative recovery was symptomless, without pain, oedema, or signs of infection. Four weeks after surgery, the healing process was completed and sufficient anterior vestibular depth was gained and maintained. Er.YAG laser assisted vestibuloplasty was a minimally invasive surgical procedure. The fast healing with minimal scarring resulted and a sufficient vestibular depth was gained.

Odontogenic inflammatory cysts are pathological lesions that are often represented in clinical practice and they presented potential focal points with an impact on other organs and systems in the bodyThe aim of this research is to compare the patients' humoral immune response by verifying the level of immunoglobulins IgA, IgG and IgM in the serum before and one month after surgical therapy in patients with odontogenic inflammatory cysts.44 male and female patients were undergone surgical enucleation of the cysts in toto -Cystectomio (Partch II). The biopsy material was sent at the Institute of Pathological Anatomy-Skopje for histopathological verification. Patients diagnosed with odontogenic inflammatory cysts were divided into three groups. Тhe values of IgA, IgM and IgG in serum werе examined before and one month after the surgical therapy in Cobas 6000 model c501 (Roche, Germany).The level of IgA did not indicate a significant difference for p=0.2716 vs. p=0.2898. A significant difference, was also not found in terms of the IgG level for p=0.2692 vs. p=0.3614. The comparison of the three groups of patients regarding the level of IgM in serum indicated a significantly higher value of this parameter before the intervention (p=0.0067) and 1 month after the intervention (p=0.0263).The surgical removal generate a decrease in the levels of immunoglobulins' level. These findings suggest that IgA, IgG and IgM may play an important role in the occurrence, development and persistence of cystic lesions.

As a digital technology enters in every area of everyday life, including the medicine, it begins to increase its influence in dental practice too. The term scanner in dentistry is called a 3-D scanner and refers to an instrument that collects data on the three-dimensional spatial layout and the shape of the tooth and dental structures in the mouth or the model and transforms them into a set of digital data. With the help of the scanner, the anatomic-morphological structures of the oral cavity are recorded or reflected and data are received in digital form.The first stage in the three-part CAD / CAM process of making a prosthetic device-scanning of the anatomic-morphological structures in this process presents the main basis of the future dental restoration. The scanning, as well as the remaining two parts of the CAD / CAM system are taken from the mechanical engineering sciences that incorporate dental doctrines for the production of a prosthetic devices. The dentists who want to use this technology often do not have enough time or sufficient knowledge to understand the current scanning process. The term scanner in dentistry is called a 3-D scanner and refers to an instrument that collects data on the three-dimensional spatial layout and the shape of the tooth and dental structures in the mouth or the model and transforms them into a set of digital data. With the help of the scanner, the anatomic and morphological structures of the oral cavity are recorded or reflected and data are received in digital form. For these reasons, we feel the need to demonstrate the development of the dental scanning process and its methodological procedures to obtain a virtual model. This makes it possible to obtain a complete picture of digital technology and to understand the necessary information about the scanning process that is today in everyday use. The paper presents the basic data that are currently available with the remark that this technology has a rapid development that will contribute to even better results in the manufacture of prosthetic devices.