Lindeshepherd1695
To compare and analyze the clinical adequacy of two topical anesthetic gels, Precaine (8% lidocaine + 0.8% dibucaine) and Precaine B (20% benzocaine) in children before intraoral local anesthetic injections.
This clinical study included thirty children who needed an inferior alveolar nerve block. They were divided into three groups Group A Precaine topical gel group, Group B Precaine B topical gel Group, Group C no anesthetic topical gel group (control group). These two effective topical gels were applied before giving intraoral local anesthesia, and afterward, the child's pain response was surveyed utilizing the Wong-Baker Faces Pain Rating Scale. The scores obtained were subjected to statistical analysis.
Intergroup comparison showed a significant mean difference between the control group and Precaine group (
> 0.05) as well as Precaine B group (
> 0.05). However, there is no significant difference obtained between Group A and Group B (
< 0.05).
It is psychologically and clinically beneficial to apply a topical anesthetic agent before injecting any intraoral anesthesia. In this study, both anesthetic gels showed a nonsignificant difference in reducing inferior alveolar injection pain, but Precaine B shows more promising results than Precaine.
It is psychologically and clinically beneficial to apply a topical anesthetic agent before injecting any intraoral anesthesia. In this study, both anesthetic gels showed a nonsignificant difference in reducing inferior alveolar injection pain, but Precaine B shows more promising results than Precaine.
This study aimed to evaluate the extent of separation and perception of pain and discomfort with the use of three different orthodontic separators.
A total of sixty participants (26 males and 34 females) aged between 18 and 25 years were enrolled in this study. Participants were divided into three experimental groups Group I elastomeric separator, Group II Dumbbell separators, and Group III Kesling Separators. All the participants were asked to revisit 24 h after separator placement, and the effect of separation obtained by three different types of separators was measured. The space generated between premolars and molars was recorded separately on days 1, 3, and 7. The visual analog scales were used to assess pain.
The mean age in Dumbbell separators group was slightly more (23.32 ± 2.28) compared to Kesling Separators and Elastomeric separator group (22.46 ± 1.20 and 21.10 ± 1.19 years, respectively). The extent of separation on days 1, 3, and 7 was more in Group II study participants (0.20 ± 0.02, 0.32 ± 0.05, and 0.48 ± 0.07 mm, respectively) compared to other groups. A statistically significant (
= 0.022) difference was noted on day 7 in terms of no pain being recorded more in Group II participants, followed next by Groups III and I.
This study concluded that the Dumbbell separators produce acceptable separation with negligible pain and discomfort when compared to elastomeric separators and Kesling separators.
This study concluded that the Dumbbell separators produce acceptable separation with negligible pain and discomfort when compared to elastomeric separators and Kesling separators.
Operative dentistry and endodontics are the two major areas where rubber dam is used extensively with special emphasis to train students on its application during dental curriculum. The purpose of the present study was to evaluate the attitude of dental students toward the use of rubber dam in operative dentistry clinics along with emphasis on evaluation of its prospective application after graduation.
A structured questionnaire-based analysis was performed among internship students of a dentistry program, Batterjee Medical College, Jeddah, Saudi Arabia. The questions were based on training, latex allergy, and selection of jaws for application of rubber dam and prospective use of rubber dam during practice.
A completed questionnaire by all participants (
= 110) was analyzed and subjected to statistical analysis. Around 80.9% of the students agreed that adequate and satisfactory training for rubber dam placement was imparted while 59.1% agreed that they enquire about latex allergy before placement of rubber dam. Further, 85.5% of the students planned to use rubber dam for all procedures after graduation.
A promising response was exhibited by this group of future dentists toward the application of rubber dam during restorative procedures.
A promising response was exhibited by this group of future dentists toward the application of rubber dam during restorative procedures.
The aim of the study was to develop a model that represents a basal implant with stress distribution in the cortical bone on application of loads emulating masticatory forces.
In this study, the stress distribution in the bone and the implant is evaluated by applying various loads that emulate the masticatory forces. The geometric models of cortical bone representing the premolar area and a basal implant model of the following specifications, longitudinal oval threaded pin (1.95 mm × 2.1/2.3 mm ø), height of the implant head (7.2 mm), and width of the implant head (3.5 mm) (BOI BS, IDHEDENTAL), were generated with Ansys software, and both the implant model and the bone model are superimposed to mimic the bone implant system as a unit.
Overall comparison of stress distribution on both implant shaft and implant neck showed that maximum stresses are located at implant neck irrespective of forces applied and minimum stresses are located at implant shaft. On overall comparison of stresses seen within the bone and the implant, it was observed that the maximum stresses were seen in the implant neck followed by the implant shaft followed by the bone interface.
The present study concluded that the stress transmission is greatest during application of oblique load (70 N) followed by horizontal load (10 N) and the least by vertical load (35 N).
The present study concluded that the stress transmission is greatest during application of oblique load (70 N) followed by horizontal load (10 N) and the least by vertical load (35 N).
The aim of the study was to assess the reaction of different final irrigants to the bond strength of root dentin exposed to chloroform.
Fifty extracted maxillary central incisors were selected. Working length was determined, and canal was instrumented with ProTaper rotary system (Dentsply Maillefer) till F4 file. The specimens were then divided into five groups (
= 10). Group 1 not disclosed to any root canal solvent, Group 2 disclosed to chloroform for 5 min, Group 3 chloroform for 5 min followed by absolute alcohol, Group 4 chloroform for 5 min followed by chlorhexidine (CHX), And Group 5 - chloroform for 5 min followed by saline. The canals were obturated with F4 gutta-percha cones with AH Plus sealer. The samples will be sectioned horizontally into 1 ± 0.1 mm thick slices. The push-out bond strength was performed in a universal testing machine. Results were statistically analyzed by one-way analysis of variance.
There existed a significant difference between the mean push-out bond strength of different groups. Irrigation with chloroform negatively affected the bonding between root canal sealer and root dentine. Absolute alcohol significantly improved the bond strength values.
Exposure with chloroform during the retreatment will decrease the bonding between sealer (AH Plus) and root dentine. The use of absolute alcohol as a final irrigant improved the bonding between sealer and dentin. CHX and saline showed no improvement in bond strength.
Exposure with chloroform during the retreatment will decrease the bonding between sealer (AH Plus) and root dentine. The use of absolute alcohol as a final irrigant improved the bonding between sealer and dentin. CHX and saline showed no improvement in bond strength.
The aim of this study was to compare the levels of salivary visfatin in healthy controls, patients with gingivitis and patients with chronic periodontitis and also to assess the outcome of scaling and root planing (SRP) on the levels of salivary visfatin in patients with gingivitis and chronic periodontitis.
A total of 48 patients, both males and females, in the age group of 25-50 years were enrolled into three groups, based on their clinical parameters Group I (Healthy controls - 16), Group II (Patients with gingivitis - 16), and Group III (Patients with chronic periodontitis - 16). Groups II and III were examined 2 months after SRP. The clinical parameters that were recorded include plaque index, modified gingival index, gingival bleeding index, pocket depth, and clinical attachment level. The samples of saliva were collected from each patient and the levels of visfatin were evaluated using enzyme-linked immunosorbent assay kit.
The mean concentration of salivary visfatin at baseline was found to be highest in Group III and lowest in Group I. A statistically significant reduction (
< 0.01) in the mean concentration of salivary visfatin and the clinical parameters were observed after 2 months of SRP.
The levels of salivary visfatin can thus be considered as an inflammatory biomarker for periodontal diseases. However, future longitudinal prospective studies are needed to support these findings.
The levels of salivary visfatin can thus be considered as an inflammatory biomarker for periodontal diseases. However, future longitudinal prospective studies are needed to support these findings.
The present study was study to observe incidence of cemental malformations related to mandibular molar roots.
All cases requiring radiographs of mandibular molars reporting to author during 2011-2019 were included in this study. Mandibular molars had been observed for any radiographic malformations. Any such alterations were noted.
Author has screened about 522 intraoral periapical radiographs in this study. A total of 63 cases of root malformations reported with two cases of cementoma were observed in this study. Both these cases were diagnosed as benign cementoblastoma (BC) on excisional biopsy.
In this study, we have observed that incidence of cemental malformations is 1.2% and of BC is 0.38% as compared to overall incidence of 1%-6% in Western Maharashtra.
In this study, we have observed that incidence of cemental malformations is 1.2% and of BC is 0.38% as compared to overall incidence of 1%-6% in Western Maharashtra.
The present study is aimed to assess the marginal integrity and color stability of provisional restorations fabricated from different autopolymerizing acrylic resins.
Totally, 60 provisional crowns were fabricated. A mandibular first molar artificial typodont was mounted on a base of dental stone. https://www.selleckchem.com/products/abt-199.html The mandibular first molar which was mounted was prepared for full cast crown, using the tooth preparation standard principles with shoulder finish line of 1 mm and taper 6°. There were 20 samples in each acrylic resin group Group I Polyvinyl-ethyl methacrylate resin, Group II Autopolymerizing bis-acrylic material, and Group III Polymethyl methacrylate (PMMA) autopolymerizing resin. Crowns were verified for marginal adaptation using stereomicroscope at a ×40. The color stability was measured using spectrophotometer poststaining period.
Autopolymerizing bis-acrylic material group showed minimum mean vertical marginal discrepancy (128.68 ± 18.036 μm) followed by PMMA autopolymerizing resin group (147.49 ± 20.128 μm) and polyvinyl-ethyl methacrylate resin group (172.
