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Purpose: To analyze the clinical, microbiologic, and host response characteristics (interleukins 1β and 6) in the peri-implant sulcus fluid (PISF) of patients with healthy dental implants and with peri-implant mucositis.Materials and Methods: Clinical parameters (modified Gingival Index [mGI], modified Plaque Index [mPI],probing pocket depth [PPD], and absence or presence of radiologic bone loss) were recorded, and PISF samples were obtained from peri-implant sites showing mucositis as well as healthy sites. The periodontopathogenic bacteria Tannerella forsythia (Tf), Treponema denticola (Td), and Porphyromonas gingivalis (Pg) were evaluated, together with the total bacterial load (TBL) and the interleukin (IL) 1βand IL-6 values. Results: The study population consisted of 34 individuals, and 77 dental implants were evaluated during the study (23 mucositis and 54 healthy peri-implant sites). The mGI, mPI, and PPD scores of the peri-implant mucositis group were significantly greater than in the healthy group. No differences in detection frequency were found for putative periodontal pathogens and TBL between the healthy peri-implant sites and mucositis sites. The mucositis group showed a significantly greater expression of IL-6 than the healthy group (P < .05). Although IL-1β was increased in the mucositis group, there was no statistically significant difference versus the healthy implant group. Conclusions: An analysis was made of the clinical, microbiologic, and host response characteristics in implants with peri-implant mucositis, establishing comparisons with healthy implants. In the patients studied, bacterial plaque induced an inflammatory response that can lead to the development of peri-implant mucositis. Adequate plaque control is therefore able to increase peri-implant health, avoiding the risk of future complications. No specific association to the studied bacterial species was established. [ABSTRACT FROM AUTHOR]

Purpose: To assess the prevalence of radiographic signs of maxillary sinus pathology in patients undergoing dental implant treatment and to compare the efficacy of panoramic radiography, computed tomography (CT), and three-dimensional (3D) CT with Implametric software in the diagnosis of sinus pathology. Materials and Methods: Thirty patients were selected at random from those being treatment-planned to receive implant-supported restorations in the maxilla and who had a panoramic radiograph, a conventional CT scan in acetate, and a 3D CT scan in digital format. The radiographic maxillary sinus findings were categorized as: (1) no sign of pathology, (2) mucosal thickening, (3) mucous cyst, or (4) occupation of the entire sinus. Results: Seventeen women and 13 men were included, with a mean age of 50.9 years. There was a 38.3% prevalence of radiographic abnormalities (23.3% mucosal thickenings, 10% mucous cysts, and 5% occupation of the entire sinus). Of the 23 sinuses that displayed radiographic signs of pathology, only 1 (4.3%) was correctly diagnosed by the panoramic radiograph. Conclusions: The most common radiographic maxillary sinus finding was mucosal thickening, followed by mucous cysts and occupation of the whole sinus. Conventional CT can be considered a reliable method for the diagnosis of maxillary sinus pathology. [ABSTRACT FROM AUTHOR]