Aim: To assess the potential benefits of minimally invasive non‐surgical therapy (MINST) in teeth with intrabony defects and to explore factors associated with the outcomes.Materials and Methods: A multi‐centre trial was conducted in 100 intrabony defects in periodontitis patients in private practice. Steps 1 and 2 periodontal therapy including MINST were provided. Clinical and radiographic data were analysed at baseline and 12 months after treatment, with the primary aim being change in radiographic defect depth at 12 months.Results: Eighty‐four patients completed the 12‐month follow up. The mean total radiographic defect depth reduced by 1.42 mm and the defect angle increased by 3° (both p < .05). Statistically significant improvements in probing pocket depth (PPD) and clinical attachment level (CAL) were seen at 12 months compared to baseline (p < .001). Fifty‐six defects (66.7%) achieved pocket closure (PPD ≤ 4 mm) and 49 defects (58.3%) achieved the composite outcome (PPD ≤ 4 mm and CAL gain ≥3 mm). Deeper and narrower angled defects were positively correlated with radiographic and clinical improvements, respectively.Conclusions: Improvements in clinical and radiographic outcomes were seen after MINST. This study highlights the generalizability and wide applicability of this approach, further supporting its effectiveness in the treatment of intrabony defects. Clinical trial registration: NCT03741374. https://clinicaltrials.gov/study/NCT03741374?cond=minimally%20invasive%20non%20surgical%20therapy&locStr=UK&country=United%20Kingdom&distance=50&rank=2.

Background: Crown cementation is a common technique for implant‐supported prosthodontics. However, for possible slipping of the cement below the mucosal margin, its thorough removal poses some issues. The objective of this study was to evaluate the presence of submucosal cement residues in patients with peri‐implant disease by endoscopic visualization and to investigate the potential correlation between the pathological scenario and the spatial position of cement residues.Methods: The study sample comprised 46 consecutive patients exhibiting clinical and radiographic signs of peri‐implant disease around cement‐retained crowns. When at first visit bleeding on probing was the only pathological sign, the area was debrided and then treated with antiseptic agents for 30 days. Only those patients for whom bleeding was still found at re‐evaluation were included in the study. All implants were therefore endoscopically evaluated to identify possible submucosal cement residues. For all implants showing residual cement, the spatial position of the residual cement was recorded with respect to predefined points.Results: Cement residues were detected in 80.4% of the patients and were predominantly located in the vestibular and lingual areas (88%). Analysis of the distances between the apical portion of the residues and anatomical landmarks revealed significant differences between mucositis and peri‐implantitis patients (p = 0.001). In cases of peri‐implantitis, the cement residue was more apically located than in mucositis.Conclusion: The presence of cement residue was associated with peri‐implant disorders in the majority of patients. A potential correlation between the position of residues and the peri‐implant disease scenario is here suggested.Plain language summary: A common method for fixing the crown on the dental implant is the use of specific cements. However, these products can slip below the gum line resulting in difficulties in their removal, which could cause peri‐implant disease. This study aimed to evaluate the presence and location of residual cement hidden under the gums in patients with peri‐implant disease, characterized by symptoms such as bleeding gums and, in some cases, bone loss around the dental implant. Using a small fiber‐optic camera (endoscope), 46 patients were examined for any cement residue under the gums. The study showed that more than 80% of patients had cement residues, especially in the areas facing the cheeks and tongue. It was also found that in patients with a more severe form of inflammation (peri‐implantitis), the cement was placed deeper than in those with a milder form (mucositis). This confirms that residual cement is common in patients with peri‐implant disease, but also suggests that its location could influence the severity of the pathological manifestation. This finding highlights the importance of carefully removing all cement to prevent such complications.

This study evaluated different variables to determine their role in the appearance of the central and lateral upper jaw papillae. 292 interdental embrasures were examined. Personal variables were: age, smoke, and use of interproximal hygiene devices. The clinical characteristics were: tooth shape, periodontal biotype and papilla appearance. Radiographic measurements were: root to root distance at the cemento-enamel junction (horizontal distance), and bone crest to interdental contact point distance (vertical distance). The papilla recession increased with patient age. The horizontal distance of the central papilla was always greater (up to 1 mm) than that of the other papillae. The vertical distance of the central papilla was greater (up to 2 mm) than that of the other papillae for each class except for the normal one (Nordland & Tarnow classification). For vertical distances ≤5 mm, papillae were almost always present; for distances up to 6 mm, the lateral papillae belonging to the normal class disappeared, while the central papilla remained in 11% of cases; central papillae of class 1 were present in larger proportions until a vertical distance of 8 mm. The present observational study shows that differences on clinical and radiographic determinants do exist between central and lateral papillae. This variance should be strictly taken in account for a harmonious and stable treatment outcome on this highly aesthetic area.