RESUMEN
The objective of this case report is to present the use of tenting screw bone augmentation technique for the rehabilitation of narrow horizontally deficient mandibular ridges and to evaluate the feasibility and outcomes of this approach in achieving sufficient bone volume for successful implant placement and Osseointegration. A 34-year-old woman with no significant medical history presented with bilaterally missing teeth in the lower arch. A comprehensive treatment plan was developed through assessment and Cone Beam Computed Tomography (CBCT) imaging to evaluate the ridge dimensions and plan the treatment accordingly accurately. The tenting screw technique, utilizing autogenous/autologous+allograft materials, was chosen for horizontal ridge augmentation. Bone augmentations were performed simultaneously bilaterally using tenting screws. After a 20-week healing period, CBCT scans revealed favorable bone regeneration with adequate width for successful implant placements. This case report demonstrates the potential of tenting screw bone augmentation in effectively rehabilitating mandibular ridges and achieving optimal dental implant outcomes. Further research is needed to validate these findings and assess the long-term stability and success of this technique.
RESUMEN
AIM: To investigate the effect of different cavity disinfectants, Phycocyanin (PC), Ocimum Sanctum (OS), and Ti Sapphire Laser, on the bond integrity and microleakage of resin restorations. MATERIAL AND METHOD: 60 human mandibular molars were extracted and prepared based on ICDAS scores of 4 and 5. To obtain the CAD surface, a visual examination was supported by tactile sensation and a dye for caries detection. Samples were randomly allocated into 4 groups based on cavity disinfectants applied (n = 15). Group 1: Specimens disinfected with CHX, Group 2: Specimens disinfected with Ti sapphire laser, Group 3: Specimens disinfected with Phycocyanin activated by Photodynamic therapy, and Group 4: Specimens disinfected with OS. Following the disinfection of the CAD surfaces, composite bulk-fill restorative material was bonded to each specimen and all samples were subjected to thermocycling. Ten samples from each group underwent SBS testing performed on a universal testing machine. Five samples were subjected to a microleakage analysis. RESULT: The maximum microleakage scores were displayed by Group 3: PC (0.521 nm) treated specimens. Whereas, and minimum microleakage was exhibited by Group 4: OS (0.471 nm). Group 4: OS (23.06±0.21 MPa) treated group displayed the maximum bond scores of resin adhesive to the CAD surface. However, Group 3: PC (21.67±0.24 MPa) treated specimens exhibited the lowest bond scores. Failure mode analysis revealed that among all the investigated groups the predominant type of failure was cohesive failure i.e., Group 1 (80%), Group 2 (80%), Group 3 (70%), and Group 4 (90%). CONCLUSION: Ocimum Sanctum, Phycocyanin activated by Photodynamic therapy, and Ti-sapphire laser for disinfection of caries-affected dentin have shown promise in terms of improved bond strength and reduced microleakage.