The ultimate intent of a root canal therapy is directed towards the prevention and control of pulpal and periradicular infection .The curtailment of endodontic microbiota during root canal therapy is accomplished by various sequences of antimicrobial approaches in the form of various canal preparation and irrigation methods. Nevertheless it is recognized that chemo-mechanical instrumentation alone is unable to completely disinfect the root canal system 1. In study done by Tang G et al it was stated that the bacteria which remains in the root canal after instrumentation proliferates in between appointment 2. So to deal with such situation antimicrobial agents such as Calcium Hydroxide could be used as an intracanal medicament also breach in the treatment protocol can lead to endodontic failures with noticeable periapical changes in such situation intracanal medication in the form of calcium hydroxide is to be given.Calcium hydroxide was introduced to dentistry by Herman in 1920 3 . Today it is used widely as an intracanal medicament in the field of Endodontics 4,5 . Its antimicrobial property is directly related to diffusion of hydroxyl ion (OH -)ion resulting in an increase in the pH 6 .According to the study done by Estereia C et al there is a direct relation among concentration and velocity of ionic liberation with antimicrobial action 7 .
Aims: This study aims to evaluate the microleakage (ML) of the newer generations bonding agents in Class V Cavity. Materials and Methods: Thirty six mandibular premolars were randomly divided into three groups: Group I (n = 12)‑bonded with GlumaBond5, Group II (n = 12) with G-Bond and Group III (n = 12) with Single Bond Universal Adhesive. Class V box cavity was prepared on the buccal surface and restored with composite resin with recommended each groups specific bonding protocol for each adhesive. ML testing were conducted, Rhodamine B and stereomicroscope was used to measure microleakage and data analyzed. Kruskal–Wallis analysis was done to statistically differentiate the ML between the three experimental groups. Intergroup comparison was made using the Mann–Whitney U test and the level of significance was set at p<0.05. Results :Single Bond Universal Adhesive showed maximum resistance to microleakage followed by GlumaBond5 and G- Bond and this difference is statistically significant(p<0.05). Mann–Whitney U test shows statistically significant difference between Group II and Group III. (p<0.05). Conclusions: Within this studys limitation, composite resin bonded with Single Bond Universal Adhesive showed maximumresistance to ML followed by GlumaBond5 and G-Bond.
The main aim of this case report was to report the clinical efficacy of decompression for treating large periapical lesions. Tooth with large periapical cystic lesions were treated with decompression after root canal treatment. A conventional decompression technique such as aspiration/irrigation technique was used in this case. An 18-G needle with a syringe was used to aspirate the cystic lesion. Two needles were then inserted into the lesion copious saline irrigation was delivered from 1 needle and until clear saline was expressed from the other. Complete enucleation and root-end surgery was not done in the case. Healed lesions or lesions in healing were observed after 14 months. On the basis of the presented case and published case reports regarding large periapical cystic lesions, conservative decompression may be used for certain cases before or in lieu of apical surgery. Decompression enables healing of large, persistent periapical lesions after root canal treatment.
Talon’s cusp is described as a process of horn-like shape curving from the base downwards to the cutting edge. Ripa and Mellor later described this phenomenon as talon cusp resemblance to talon of eagle. Talon cusp is a well-defined extra addition cusp like structure which extends from half of the cementoenamel junction to the incisal edge on the surface of an anterior tooth. The aetiology is unknown for the formation of the talon cusp. A talon cusp is often diagnosed during routine dental examination as an incidental finding and usually does not show any symptoms. In such cases, careful clinical and radiographic examination is mandatory for correct diagnosis and treatment planning. Due to limitation of 2 D (two dimensional) radiographs, these images are unable to recognise the complicated anatomy of the tooth.Use of Cone-Beam Computed Tomography (CBCT) has become common in dentistry. CBCT has been useful in producing a three dimensional (3 D) image without distortion of the teeth, maxillofacial skeleton and related tissues. Scan of CBCT help to plan treatment and also provide valuable information about dental anatomy. This paper describes a case of 23-year-old female patient with a facial talon cusp on the permanent maxillary left central incisor, which was endodontically managed and followed by aesthetics rehabilitation with a follow-up for a period of one year.
Aims: This is an vitro study compares and evaluates the effect of magnification tools on frequency and extent of iatrogenic damage to approximal tooth surface during conservative Class II cavity preparations. Methods and Material: 30 Typodont teeth were divided into 3 groups 10 typodont teeth in each group and were mounted on Phantom head. Teeth were prepared for class II (MO) cavity on 36 with conservative design using airotor with naked eye, loupes and microscope and iatrogenic damage was assessed on tooth no 35. Assessment of iatrogenic damage of all the groups was done by profilometer test. Statistical analysis used:Statistical analysis was done using one-way analysis of variance (ANOVA). Post-hoc pair-wise comparisons were done using Dunnetts test. Results: Results revealed that tooth preparation was better under microscopes and loupes with statistical significant difference for samples with loupes and microscope on comparison with naked eye. Study also expressed the difficulty faced during tooth preparation with microscope and loupes for the first time. Conclusions: Magnifying tools helps in better vision and less iatrogenic damage while preparing the tooth for restoration.
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