COMPARATIVE STUDY ON VITALITY PRESERVATION OF YOUNG PERMANENT TEETH USING BIOACTIVE MATERIALS

Introduction Traumatic injuries and decays are the biggest challenges to the integrity of a young permanent tooth .The aim of this study was to compare the biostimulating and repairing action of mineral trioxide aggregate (MTA) and of the mineral aggregate with ceramic nanoparticles (BioAgreggate) with calcium hydroxide action, in terms of clinical-radiological parameters, after vital pulp therapy in young permanent teeth affected by dental caries or traumatic injury. Material and methods The study was conducted on a sample of 36 teeth from 31 patients of both sexes, aged between 7 and 15 years (mean 9.3 ± 1.9 years), divided into three groups, and took place for a period of up to 4 years. Results The results concerning the effectiveness of the three materials used were evaluated in terms of clinical and radiological manifestations. These were significantly correlated (Ȥ2 = 35.3, r = 0.705, p = 0.003, 95% CI), the study demonstrating an important differences between the three groups of teeth. Final evaluation showed a significant association (Ȥ2 = 18.69, r = 0.725, p = 0.001, 95% CI) between the material used and the final results. Conclusions Following clinical aseptic procedures, after removing bacterial contamination, applying a bio-stimulative dressing and an hermetic crown sealing, there are high chances (about 95%) that the pulp of a young permanent tooth, even seeming irreversibly inflamed, to return to the original status and continue to exercise its functions with longterm preservation of vitality

Study Regarding The Influence Of Root Filling And Coronal Restoration In Chronic Apical Periodontitis: Prevalence And Severity

Aim of the study The study aimed to determine the influence of root filling and coronal restorations quality on prevalence and severity of chronic apical periodontitis (CAP). Materials and method The study was performed on 126 patients (age 20-50), with a total number of 299 teeth with finished endodontic treatments and amalgam and composite resins restorations. The assessment of root fillings was performed on periapical radiographs and coronal restorations were assessed using clinical examination and byte-wing radiographs. The periapical status was analysed using P.A.I. indices. Results The study proves the high prevalence of chronic apical periodontitis (73.6%). High prevalence of C.A.P. (94.1%) and P.A.I. indices (4.06) are present for teeth with coronal restoration with poor marginal integrity and short root fillings. Conclusions Both the quality of the coronal restoration and the quality of the root filling (length and density) are correlated with the presence and severity of chronic apical periodontitis

Hybrid Quinoline-Sulfonamide Complexes (M2+) Derivatives with Antimicrobial Activity

Two new series of hybrid quinoline-sulfonamide complexes (M2+: Zn2+, Cu2+, Co2+ and Cd2+) derivatives (QSC) were designed, synthesized and tested for their antimicrobial activity. The synthesis is straightforward and efficient, involving two steps: acylation of aminoquinoline followed by complexation with metal acetate (Cu2+, Co2+ and Cd2+) or chloride (Zn2+). The synthesized QSC compounds were characterized by FTIR and NMR spectroscopy and by X-ray diffraction on single crystal. The QSC compounds were preliminary screened for their antibacterial and antifungal activity and the obtained results are very promising. In this respect, the hybrid N-(quinolin-8-yl)-4-chloro-benzenesulfonamide cadmium (II), considered as leading structure for further studies, has an excellent antibacterial activity against Staphylococcus aureus ATCC25923 (with a diameters of inhibition zones of 21 mm and a minimum inhibitory concentration (MIC) of 19.04 × 10−5 mg/mL), a very good antibacterial activity against Escherichia coli ATCC25922 (with a diameters of inhibition zones of 19 mm and a MIC of 609 × 10−5 mg/mL), and again an excellent antifungal activity against Candida albicans ATCC10231 (with a diameters of inhibition zones of 25 mm and a MIC of 19.04 × 10−5 mg/mL)

THE ROLE OF OZONATED WATER IN THE SUCCESS OF THERAPY OF CHRONIC APICAL PERIODONTITIS. CASE REPORT

This case report describes the achievement of endodontic space decontamination with ozonated water (conc. 20 mg mL-1, 1 min) used as canal irrigant to a central incisor from the maxilary, second quadrant, diagnosed with progressive diffuse chronic apical periodontitis. Conservative treatment of the root canal was performed in a single session. Postoperative clinical and radiological examination after 3 months revealed complete healing of periapical lesions of endodontic origin. Proper diagnosis of periapical lesions and unconventional treatment of the complex system of infected root canal allowed complete healing of the lesion without interfering through surgical endodontic therapy. This case report demonstrates the successful healing of persistent periapical lesions using an alternative (non-conventional) method with ozonated water

THE INFLUENCE OF USING ULTRASOUNDS FOR IMPROVING THE SEALING ABILITY OF THE PERMANENT ROOT CANAL FILLING

This paper aims to evaluate ,,in vitro’’ the tightness of root fillings in monoradicular teeth using distinct techniques: monocone classic technique, cold lateral condensation technique and warm vertical condensation ultrasound associated technique, underlining some issues of particular interest regarding clinical outcomes over time for endodontic treatment. The study group consists of 45 permanent, monoradicular maxillary and mandibular teeth. The study results showed a higher degree of dye infiltration in the teeth root, filled with monocone classic technique compared to cold lateral condensation and hot vertical condensation ultrasound associated methods; slightly higher dye infiltration in teeth filled by cold lateral condensation technique compared to the teeth group with hot vertical condensation ultrasound associated technique; the control group showed overall richest dye penetration in root canals and dentinal tubules. Warm root canal filling with fluid gutta-percha makes a more qualitative 3D sealing, especially in the medium and coronal thirds compared to other techniques used

The Combination of Diode Laser and Ozonated Water in the Treatment of Complicated Pulp Gangrene

The study aimed to investigate the effects of endodontic space decontamination using a laser combined with ozonated water in the therapy of complicated pulp gangrene. The subject of this in vivo study was a 12-year-old patient diagnosed with extensive periapical periodontitis on the mandibular right first molar. Biological samples were initially collected to identify the active pathogen—Enterococcus faecalis, then the nonsurgical endodontic treatment was performed in a single visit, according to the active disinfection guidelines of the identified pathogen. Two-month postoperative, clinical and radiological examination revealed a complete healing of the periapical lesion. The correct diagnosis of this endodontic–periodontal pathology, and the unconventional treatment of the complex system of infected root canals, allowed a favorable treatment result without any surgical intervention. This unconventional approach, which combines a laser technique with ozonated water, allows for predictable results in periapical lesion treatment