There is a general agreement that vital pulp therapy in vital permanent teeth with cariously exposed pulps is a difficult process. A fast-setting calcium silicate-based cement material, Biodentine, has recently been in use in various clinical procedures as apexification, root perforations or resorptions, retrograde fillings, direct or indirect pulp capping procedures, and finally dentine replacement. Many of the recently published research articles recommended Biodentine as a vital pulp-capping material. Also, it is considered as a good dentine substitute. This review article explains different biochemical and vital pulp teeth clinical applications of this promising material.
To ensure the diagnostic ability of CBCT for caries detection under different types of tooth colored restorative materials. Material and Methods: In the present study a total of 80 extracted carious permanent molar teeth were selected. Caries was classified as grade 3 according to International Caries Detection and Assessment System (ICDAS) criteria. Half of carious lesions were removed from 40 molars as Control specimens. Carious teeth were randomly assigned into two groups and each group was divided into four subgroups including: two carious and two non-carious as controlled group and all the teeth were filled with different bioactive restorative materials, then all the specimens were scanned with cone beam computed tomography (CBCT) using a Promax ® 3DMid CBCT device (Planmeca, Oy, Helsinki, Finland). Results: Caries was detected in all the carious specimens of all the groups except that group A2 was much less remarkable than other groups. In the control specimens (noncarious) of all the groups: No caries was detected .Conclusion: Although CBCT is an excellent tool for secondary caries detection under different types of restorative materials but it should not be used as a primary diagnostic tool on regular basis. If its use is a must, so, optimized low dose low resolution protocol is recommended.
The aim of this study was to evaluate the effect of using Er: YAG laser during in-office tooth bleaching on enamel surface. Method: Thirty enamel discs specimens of human anterior teeth and divided into three groups, Group 1: (control) specimens received no bleaching treatment; Group 2: specimens received conventional in-office bleaching treatment using Opalescence Boost PF tooth whitening systems; Group 3: specimens received laser assisted bleaching procedure using low energy Er: YAG laser to assist tested bleaching gels. After bleaching, Specimens were stored for 15 days in artificial saliva. Digital microscope and images analysis used to evaluate surface roughness. Scanning electron micrographs were captured to evaluate enamel surface changes. Data were statistically analyzed using Aasistat 7.6 statistics software with Student t-test. Results Conventional in-office bleached enamel showed statistically significant higher enamel surface roughness than unbleached enamel surface with changes in enamel surface morphology were observed. While ER: YAG laser assisted bleached enamel, surfaces showed non-statistically significant higher enamel surface roughness than unbleached enamel surface with minor changes in enamel surface morphology were observed. Conclusions: Tested laser assisted bleaching procedures showed safely enamel surface treatment than conventional in-office bleaching procedures.
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