Evaluation of alveolar bone width alterations around dental implants.

Teeth that are lost can be replaced with dental implants. A sufficient width of bone surrounding the implant is beneficial to its success. Therefore, it is of interest to examine alterations in width of alveolar bone surrounding dental implants at natural and rebuilt bone locations [alveolar ridge preservation (ARP) /Guided Bone Regeneration (GBR)] using CTBT. A CBCT examination of the implant recipient site was performed on sixty patients (both male and female), who had undergone dental implants. All conventional surgical procedures were followed for inserting dental implants. All participants had their horizontal alveolar bone widths around implants assessed at 3 positions: subcrestal width 1 mm (CW1 (crestal level-CW1), subcrestal width 4 mm (CW4), and subcrestal width 7 mm (CW7). There were 32 male patients and 28 female patients out of 60 totals. The mean bone width was 7.02 mm at CW1 prior to surgery and 6.91 mm afterward; it was 8.52 mm at CW4 and 8.13 mm afterward; and it was 10.21 mm at CW7 prior to surgery and 10.08 mm afterward. There was a substantial difference (P<0.05). At CW1, the bone width was 0.38 mm at local bone and -0.02 mm at ARP/GBR; at CW4, the bone width was 0.46 mm at local bone and 0.23 mm at ARP/GBR; and at CW7, the bone width was 0.22 mm at local bone and 0.02 mm at ARP/GBR. There was no discernible difference (P>0.05). Resorption of the alveolar bone width was only noticeable at the middle third of the sites. Long-term alterations in the alveolar bone width surrounding dental implants at local and rebuilt bone sites can be observed using CBCT images.

Linking periodontal pathogens with endoperio lesions.

Endodontic-periodontal diseases pose difficulties for the practitioner in diagnosing and predicting the success of the affected teeth. Therefore, it is of interest to correlate between periodontal infections and endodontic periodontal disorders. 50 patients of both sexes were included in this study. 28 of the 50 patients were men and 22 were women. Participants with a history of endodontic and periodontal lesions on the same tooth were chosen. A polymerase chain reaction experiment was carried out and relationships were formed. Data shows that isolates of Porphyromonas gingivalis, Aggregatibacter actinomycetemcomitans and Tannerella forsythia were identified in 91% of the periodontium, 12% of the endodontium, and 51% of the endodontium, respectively. Targeted bacterial species were associated with periodontal and endodontic disorders that occurred concurrently. Therefore, it is plausible to speculate that dentinal tubules serve as a channel for the dissemination of microorganisms.