Parodontalna bolest (parodontopatija) je hronična inflamatorna bolest u čiju patogenezu su uključene različite ćelije urođenog i stečenog imuniteta, među kojima i makrofagi. Makrofagi su profesionalni fagociti čija je osnovna uloga ingestija i destrukcija mikroorganizama. Pored fagocitoze, ove ćelije su angažovane u produkciji proinflamatornih citokina i u prezentaciji antigena T-ćelijama, te se smatraju ključnim ćelijama urođenog imunskog odgovora. U našem istraživanju praćena je gustina i distribucija makrofaga u zdravoj i inflamiranoj gingive sa ciljem da se proceni njihov značaj u patogenezi parodontopatije. Materijal su činile gingivalne biopsije 96 pacijenata svrstanih u 4 grupe: zdrava gingiva, gingivitis, početna parodontopatija i uznapredovala parodontopatija. Za identifikaciju makrofaga korišćena je imunohistohemijska tehnika bojenja zasnovana na upotrebi monoklonskog antitela anti-CD68. Prema našem istraživanju gustina makrofaga je veća u gingivitisu i parodontopatiji u odnosu na zdravu gingivu. Između gingivitisa i parodontopatije nije nađena značajna razlika u gustini makrofaga. Grupisanje makrofaga u blizini delimično liziranih kolagenih vlakana u parodontopatiji ukazuje na njihovu kolagenolitičku aktivnost. Povećanje broja makrofaga u inflamiranoj gingivi može se dovesti u vezu i sa resorpcijom kosti jer se ove ćelije mogu diferencirati u osteoklaste.

Collagen is a major constituent of the gingival extracellular matrix, which crucially affects the histoarchitecture of the gingival tissue. Collagen type I dominates the gingival tissue, while type II, III and IV are present to a lesser extent. Changes in distribution and density occur in the inflamed gingiva. The aim of the study was to examine the organization and density of the collagen in healthy and inflamed gingiva. The material for the study consisted of the gingival biopsies performed in 96 patients aged from 13 to 70 years. The gingival specimens were classified into 4 groups: healthy gingiva, gingivitis, moderate periodontal disease and severe periodontal disease. The samples of the gingival tissues were stained by the method of Van Gieson’s Stain, while the VD of the collagen was measured bz the use of multipurpose testing system M42. In healthy gingival collagen are thick and receptive to color. In gingivitis collagen is mostly preserved structure, but reduced volume; in the periodontitis collagen bundles are reduced, short, thin, disorganized, often fragmented and less susceptibility to color. In healthy gingiva collagen fibers occupy 58.6 ± 5.1% of the volume of lamina propria; in gingivitis significantly lower (44.2 ± 6.2%); in moderate periodontitis 32.7 ± 8.5% and in the progressed periodontitis only 28.7 ± 9.7%. Based on our results, we concluded that in periodontal disease occurs collagenolysis. Quantitative evaluation of gingival collagen volume density may reflect the clinical severity of periodontal disease.

Diabetes mellitus is one of the most common non-communicable chronic diseases, which is the combined action of genetic factors, environmental factors and lifestyle. Specific conditions occur in the oral cavity in the course of diabetes that cause changes in all oral tissues with different symptoms and signs. Increased salivary glucose level is followed by increased accumulation of dental plaque and decreased resistance to noxious agents. The most common oral manifestations in diabetic patients include higher prevalence of periodontal desease, burning mouth syndrome, disruption in salivary flow, opportunistic infections, higher prevalence of denture stomatitis, oral lichen planus, fissured tongue, angular cheilitis etc. Dental interventions in patients with well-controlled diabetes are not different from those applied to nondiabetic patients. Regular monitoring of these patients is required because of the complications that can occur.

Maligni tumori pljuvačnih žlezda su retka oboljenja i u najvećem broju se javljaju u velikim pljuvačnim žlezdama. Cilj istraživanja bio je da se analizira trend incidencije malignih tumora velikih pljuvačnih žlezda kod stanovništva grada Beograda. Podaci su dobijeni iz Registra za maligne tumore centralne Srbije. Analizirani su svi slučajevi malignih tumora velikih pljuvačnih žlezda registrovani u Beogradu od 01. januara 1999. godine do 31. decembra 2010. godine. Trend kretanja i godišnji procenat promene incidencije izračunat je regresionom analizom uz pomoć tačaka spajanja (engl. joinpoint regression analysis). U ispitivanom periodu Registru je prijavljeno je 283 pacijenta (168 muškaraca i 115 žena) sa malignim tumorima velikih pljuvačnih žlezda. Standardizovana stopa incidencije svih tumora u ispitivanom periodu, za oba pola, bila je 0,87/100,000 stanovnika, odnosno 1,13 za muškarace i 0,67 za žene. Standardizovana stopa incidence se uvećavala sa godišnjim procentom promene od 6,4% kod oba pola (p<0,001). Rezultati su pokazali konstantno povećanje trenda incidencije malignih tumora velikih pljuvačnih žlezda kod stanovništva grada Beogradu između 1999. i 2010. godine.

29 - year Lichen planus is a chronic, inflammatory, autoimmune skin disease, that is often manifested, except on the skin, in the oral cavity in a variety of clinical forms. The prevalence of the disease in the general population is about 1-2%. Etiopathogenesis is not still well understood. Histopathology, in addition to the basic methods, anamnesis and physical examination, is vital for proper diagnosis of oral lichen planus (OLP). Very diverse and loaded histological findings are common for all forms of oral lichen planus. We reported the case of oral lichen planus in a 49 years old male patient, who presented to the Dentistry clinic of Medical faculty of Priština with burning and itching symptoms and changes in the buccal mucosa. Histopathological analysis of biopsy tissue conformed clinical diagnosis of lichen planus. Due to the possibility for malignant transformation of lesions, the long-term follow-up of patients with this disease is of great importance.

Parodontopatija predstavlja inflamantornu reakciju na gram-negativne anaerobne bakterijske infektivne agense koja pogađa potporni aparat zuba, uključujući gingivu, parodontalni ligament, cement i alveolarnu kost. Cilj istraživanja bio je da se utvrdi kvantitativno-kvalitativni sastav mokroorganizama subgingivalnog plaka kod pacijenata obolelih od hronične i agresivne parodontopatije PCR metodom (eng. Polimerase Chain Reaction), a zatim proceni povezanost različitih stepena inflamacije i destrukcije tkiva parodoncijuma sa prisustvom i koncetracijom ovih mikroorganizama. Ispitivanjem je obuhvaćeno 70 pacijenata starosti od 16 do 65 godina. Utvrđivanje mikroorganizama u subgingivalnom plaku, određen je PCR metodom. U cilju postavljanja dijagnoze i određivanja stepena destrukcije parodontalnog tkiva, bili su korišćeni standardni epidemiološki kriterijumi: plak indeks (Silness-Löe), gingivalni indeks (Lӧe-Silness), SBI indeks (Mühleman-Son) i PDDZ. Prisustvo parodontopatogena u subgingivalnom plaku pokazalo je statističku vezu sa kliničkim parametrima težine parodontopatije i inflamacije gingive. Nalaz Porphyromonas gingivalis i Actinobacillus actinomycetemcomitans je bio statistički značajno češći kod pacijenata sa srednje teškom i teškom formom parodontopatije u odnosu na prosečnu dubinu parodontalnih džepova. Detekcija P.g. i A.a. je bila statistički značajno češća kod osoba sa umerenom i intezivnom inflamacijom gingive. Kvantitativno-kvalitativni sastav mikroorganizama subgingivalnog plaka ima direktan uticaj na inflamatorno-destruktivne procese u parodontalnim tkivima.

The nature of herpes simplex virus as infective agens, which can grow in number, only in live cells, and fact that many herpes virus infections of oral tissue have atypic and asymptomatic course, makes their diagnosis more difficult and complicate from infections caused by other microorganisms. The aim of this investigation were to established cytological findings oral lesions of primary and recurrent herpes infections.

After restoration of approximative cavities where gingive wall is forming subgingivaly occurs an damage of epitel of gingival sulcus and subepitel fibrous tissue. These damages occur partially in order of direct irritative effect of materials, and partially because of inadequately made definite reisen. Anomaly which may occur while making reisen, is effect of micro leakage between reisen wall of cavities roughness and reisen parts which prominate above anatomic tooth sphere , enable faster and bigger accumulating of dental plaque. Gingive inflammation is widening deeper in parodontium trough vascular network situated in interdental bone septum. Inflammation is constantly spreading from the point and reaches parodontium. The aim of this study is to estimate clinical changes in parodontium within certain group of patients of different age and sex, caused by inadequate dental restoration. Results of this research present that anomaly in dental reisen , have great influence on inflammation reaction of parodontium. Composite reisen cause higher degree of inflammatory reaction in compared to amalgam reisen

Periodontal disease is a chronic inflammatory disease that is largely attributable to infections with gram-negative bacteria and is characterised by both gingival inflammation and alveolar bone resorption. Beside macrophages, the second most common cells of the gingival inflammatory infiltrat are mast cells. Mast cells are heterogenous cell population which live from six months to one year. These cells are activated by differnt immunologic and non-immunologic signals. Activated mast cells can secrete a range of substances that regulate angiogenesis, tissue remodeling and wound healing, which include both degradation and synthesis of tissue components. Apart from that, mast cells have an important role in phagocytosis, antigen processing and presentation to T-cells. It is confirmed that gingival mast cells can express matrix metalloproteinases (MMPs) and the tissue inhibitors of metalloproteinases, TIMP-1 and TIMP-2. This indicates that mast cells are likely to play an important role in inflammation and tissue degradation in periodontal diseases.

Dendritic cells (DCs) are antigen presenting cells which trace origin from bone marrow cells. These cells are discovered and described by Steinman i Cohn (1973) in peripheral lymphoid organs of mice. The cellular membrane of DCs are place of expression of plenty immunoregulatory molecules such as MHC class I and II, co stimulatory, and adhesion molecules, as well as many receptors for different cytokines. Armed on this way, DCs are one of the most effective antigen presenting and immunoregulatory cells. Moreover, role of DCs in development of immune reaction can be crucial due to they are one of the most important cellular “link” between native and adaptive immunity. DCs are engaged in mechanisms of antigen processing and presentation, induction of immune reaction, establishing immune tolerance and immune reaction regulation, balancing the immune reaction between autodestruction and protection of “self” cells. These functions makes that DCs play very important role in development of some pathological conditions and diseases such as autoimmunity, allergies and quality of anti-tumor and anti-microbe defense. Unbalanced immune reaction is hallmark of all cited diseases and immunopatological conditions, so that the function of DCs should be explored on the better way.