A history of periodontal disease, cemented prostheses, presences of wear facets on the prosthetic crown and full mouth rehabilitations were identified as risk indicators for peri-implantitis. Implants' characteristics were not related to the presence of peri-implantitis.

Background: The aim of this study was to compare different surgical therapies to treat peri-implantitis. Methods: Twenty-three patients presenting one implant affected by peri-implantitis were divided into three groups: (i) open flap debridement (OFD) and citric acid decontamination (CAD); (ii) OFD, CAD and subepithelial connective tissue graft (SCTG); (iii) OFD, CAD and implantoplasty. Modified plaque index (MPI), gingival bleeding index (GBI), keratinized mucosa (KM) width, probing depth (PD), bleeding or suppuration on probing (B/SOP), and radiographic crestal bone level were registered 1(T1), 2(T2) and 3(T3) years after treatment. Results: In Group 1 there was a significant improvement in MPI from baseline to T1, and a significant reduction in PD over time. In Group 2, none of the assessed clinical parameters showed any statistically significant variation over time. In Group 3, there was a significant decrease in PD and B/SOP over time. When comparing the 3 Groups, KM was significanlty greater in Group 2 vs. Group 1 and Group 3 at T1 and T2, and in Group 2 vs. Group 3 at T3. Conclusion: All therapies were successful in the management of peri-implantitis; however, SCTG maintained the greatest KM width. Surgical therapies combined with mechanical and chemical decontamination contributed to peri-implant tissue health.Abbreviations and acronyms: B/SOP = bleeding or suppuration on probing; CBL = crestal bone level; PD = probing depth; SCTG = subepithelial connective tissue graft.

Background: Different nonsurgical, antibacterial, surgical, and regenerative approaches to treat peri-implantitis have been proposed, but there is no an actual "gold" standard treatment showing the most favorable results to counteract peri-implantitis effects.Purpose: To evaluate radiographically and clinically the disease resolution and periimplant marginal bone stability rates of peri-implantitis cases treated through a combined resective-implantoplasty therapy in a moderate to long-term period. Materials and Methods:Records of patients diagnosed with peri-implantitis and treated through the same protocol applying a combined resective-implantoplasty therapy with minimum 2-year follow-up were screened. Eligible patients were contacted and asked to undergo clinical and radiologic examination. Progressive marginal bone loss, bleeding on probing, suppuration, implant mobility, and implant fracture were considered to establish the disease resolution rate and peri-implant bone stability of the treated implants.Results: Twenty-three patients with 32 treated implants fulfilled the inclusion criteria. Over the 2 to 6-year follow-up, (mean time: 3.4 ± 1.5 years), the disease resolution rate was 83% (patient level) and 87% (implant level). Four implants (13%) were lost or removed due to continuous MBL and osseointegration failure. At followup, peri-implant marginal bone remained stable with no further bone loss in 87% of the treated implants. BOP was absent in 89.3% (implant level), suppuration was resolved in all cases, and no pain or implant fracture was reported.Conclusion: Implantoplasty treated cases showed high disease resolution rate and peri-implant marginal bone stability. This surgical antibiofilm strategy can counteract peri-implantitis progression providing an adequate environment for implant function and longevity over a moderate to long-term period. K E Y W O R D Simplant survival, implantoplasty, peri-implantitis, peri-implant lesions

All tested rotatory instruments performed the same level of surface roughness in the implantoplasty. The tungsten carbide bur caused a minor change in the implant temperature. The multilaminar bur performed a faster wear time. More in vivo studies are necessary to conclude which is the best rotatory instrument for implantoplasty.

ObjectiveThe aim of this study was to evaluate the relationship between the number of pillar implants of implant-supported fixed prostheses and the prevalence of periimplant disease.Material and MethodsClinical and radiographic data were obtained for the evaluation. The sample consisted of 32 patients with implant-supported fixed prostheses in function for at least one year. A total of 161 implants were evaluated. Two groups were formed according to the number of implants: G1) ≤5 implants and G2) >5 implants. Data collection included modified plaque index (MPi), bleeding on probing (BOP), probing depth (PD), width of keratinized mucosa (KM) and radiographic bone loss (BL). Clinical and radiographic data were grouped for each implant in order to conduct the diagnosis of mucositis or peri-implantitis.ResultsClinical parameters were compared between groups using Student's t test for numeric variables (KM, PD and BL) and Mann-Whitney test for categorical variables (MPi and BOP). KM and BL showed statistically significant differences between both groups (p<0.001). Implants from G1 – 19 (20.43%) – compared with G2 – 26 (38.24%) – showed statistically significant differences regarding the prevalence of peri-implantitis (p=0.0210).ConclusionIt seems that more than 5 implants in total fixed rehabilitations increase bone loss and consequently the prevalence of implants with periimplantitis. Notwithstanding, the number of implants does not have any influence on the prevalence of mucositis.

No abstract

The findings suggest that the DBCM can activate TGF-β signaling in oral fibroblasts.

During a 5-year-period, 17 cases of congenital adenomatoid malformation of the lung were observed in the Department of Pediatric Surgery of Bologna University-S. Orsola-Malpighi Hospital; 16 cases were diagnosed in utero by ultra-sound. 13 patients had prenatal diagnosis between 21 and 23 weeks of gestation; 2 cases were diagnosed at 25 weeks and another one at 26 weeks. The other case came from another hospital, and the diagnosis was accidentally detected postnatally. In 3 cases the parents decided to terminate the pregnancy 3 cases had spontaneous improvement during the last weeks of gestation, and were perfectly normal at birth. One case was lost to follow-up; all remaining patients underwent resection. Among these patients only one was a nonsurvivor, while 9 have completely recovered. However, one patient developed persistent pulmonary hypertension, which could successfully be treated with drugs, another underwent laser treatment for laryngeal stenosis due to intubation. A special epidemiological information: 13 out 17 cases (76.5%) were female.