Systemic sclerosis is a chronic, autoimmune, multisystemic disease characterized by aberrant extracellular matrix protein deposition and extreme progressive microvasculopathy. These processes lead to damage within the skin, lungs, or gastrointestinal tract, but also to facial changes with physiognomic and functional alterations, and dental and periodontal lesions. Orofacial manifestations are common in SSc but are frequently overshadowed by systemic complications. In clinical practice, oral manifestations of SSc are suboptimally addressed, while their management is not included in the general treatment recommendations. Periodontitis is associated with autoimmune-mediated systemic diseases, including systemic sclerosis. In periodontitis, the microbial subgingival biofilm induces host-mediated inflammation with subsequent tissue damage, periodontal attachment, and bone loss. When these diseases coexist, patients experience additive damage, increasing malnutrition, and morbidity. The present review discusses the links between SSc and periodontitis, and provides a clinical guide for preventive and therapeutical approaches in the management of these patients.

(1) Background: This cross-sectional investigation appreciated the role of serum C-reactive protein (CRP), several hematologic-cell markers, and salivary inflammation-related molecules [calprotectin (S100A8/A9), interleukin-1β (IL-1β), kallikrein] to predict periodontitis in patients with atherosclerotic cardiovascular disease (ACVD), arrhythmia, or both. Also, we appreciated the relationship between the inflammatory burden and periodontal destruction with the type of cardiac pathology. (2) Methods: Demographic, behavioral characteristics, periodontal indicators, blood parameters, and saliva samples were collected. (3) Results: All 148 patients exhibited stage II or III/IV periodontitis. Stage III/IV cases exhibited significantly increased S100A8/A9 levels (p = 0.004). A positive correlation between S100A8/A9 and IL-1β [0.35 (<0.001)], kallikrein [0.55 (<0.001)], and CRP [0.28 (<0.001)] was observed. Patients with complex cardiac involvement had a significantly higher number of sites with attachment loss ≥ 5 mm [19 (3–30)] compared to individuals with only arrhythmia [9 (3.25–18)] or ACVD [5 (1–12)] [0.048♦ {0.162/0.496/0.14}]. (4) Conclusions: Severe, extensive attachment loss may be indicative of patients with complex cardiac conditions, which underscores the essential role of periodontal status in relation to systemic diseases. The correlations between the rising trends of the inflammatory parameters suggest a potential interconnection between oral and systemic inflammation.

Background/Objectives: Tooth extraction induces significant alveolar ridge dimensional changes and soft tissue modifications, often leading to challenges in implant placement or conventional prosthetic rehabilitation. Alveolar Ridge Preservation (ARP) strategies aim to mitigate post-extraction resorption of the alveolar ridge, enhancing both the quality and quantity of bone and soft tissue during healing. Hyaluronic acid (HYA) has emerged as a promising biological agent for ARP due to its osteoinductive, antimicrobial, and anti-inflammatory properties. However, the effects of HYA in ARP remain inconsistently reported. This study aims to assess current clinical and preclinical evidence regarding the biological effects of HYA and its application in ARP. Additionally, it evaluates HYA’s impact—alone or in combination with other products—on hard and soft tissue dimensional changes, early wound healing, and implant success rates. Methods: A comprehensive electronic literature search was conducted, and studies meeting the inclusion criteria were critically evaluated. Relevant data were extracted from the final selection of articles. Results: Thirteen publications were evaluated. Some studies reported a significantly improved newly formed bone following ARP with intra-socket HYA application as a single approach (p = 0.004). Combining HYA with a bone graft and a free palatal graft resulted in significantly greater amounts of newly formed and mature bone, reduced clinical bone width changes, lower radiographic crestal bone loss (p < 0.01), and diminished radiological volumetric and linear bone resorption (p = 0.018). Short-term follow-up data indicated improved soft tissue healing associated with HYA-based ARP. While HYA appears to have a protective effect on ridge dimensional changes in ARP, other studies reported no significant differences in radiographic bone dimensional changes or soft tissue improvement. Conclusions: The addition of HYA to bone grafts may enhance some ARP outcomes. However, the variability in outcomes and methodologies across the evaluated studies precludes drawing definitive clinical conclusions. Further robust research is needed to clarify HYA’s role in ARP. With respect to clinical significance enhancing the understanding of ARP management strategies and their effects on post-extraction sockets empowers clinicians to make more informed decisions. The knowledge of HYA effects facilitates the selection of personalized ARP approaches tailored to optimize outcomes for subsequent interventions.

(1) Background: This study aimed to assess the periodontitis burden in systemic sclerosis patients and the possible association between them, and the degree to which some potential risk factors and two potential diagnostic biomarkers may account for this association. (2) Methods: This cross-sectional study included a test group (systemic sclerosis patients) and a control group (non-systemic sclerosis patients). Both groups benefited from medical, periodontal examination and saliva sampling to determine the salivary flow rate and two inflammatory biomarkers (calprotectin, psoriasin). A systemic sclerosis severity scale was established. (3) Results: In the studied groups, comparable periodontitis rates of 88.68% and 85.85%, respectively, were identified. There were no significant differences in the severity of periodontitis among different systemic sclerosis severity, or in the positivity for anti-centromere and anti-SCL70 antibodies. Musculoskeletal lesions were significantly more common in stage III/IV periodontitis (n = 33, 86.84%) than in those in stage I/II (n = 1, 100%, and n = 3, 37.5%, respectively) (p = 0.007). Comparable levels of the inflammatory mediators were displayed by the two groups. There were no significant differences in calprotectin and psoriasin levels between diffuse and limited forms of systemic sclerosis. (4) Conclusions: Within the limitations of the current study, no associations between systemic sclerosis and periodontitis, or between their risk factors, could be proven.

Periodontitis is a biofilm-induced multifactorial disease characterized by non-reversible damage of the periodontal tissues. Dysbiosis of the subgingival microbiota plays a crucial role in periodontitis. In this regard, conventional periodontal treatment consists of subgingival mechanical instrumentation, but adjunctive methods, such as air-polishing powders, have also sparked considerable interest due to their ability to efficiently disrupt biofilm with minimal tissue damage. The aim of this narrative review is to provide an overview and critical discussion of the recent literature on the properties and interactions of air-polishing powders with oral bacteria and soft tissues. Fifteen studies were included. Eight recent clinical studies demonstrate that air-polishing powders (e.g., glycine, erythritol) can significantly reduce periodontal pathogens, thereby supporting their role in effective biofilm control; In vitro evidence from four included studies indicates cell-type-specific responses to different powders, with trehalose demonstrating superior biocompatibility compared with glycine and erythritol/chlorhexidine formulations. This variability highlights the importance of choosing the right powder to improve clinical outcomes and reduce tissue side effects. By integrating microbiological, cellular and histological findings, the objective of this review is to clarify the antibacterial efficacy and biocompatibility of air-polishing powders. Overall, air-polishing powders have been shown to be safe and effective as an adjunctive treatment, in both active periodontal and supportive periodontal therapy.

Introduction. As oral mesenchymal stromal cells (MSCs) have not, to date, been isolated from systemic sclerosis (SSc) patients, the aim of this in vitro experiment was to characterize gingival MSCs (SScgMSCs) and granulation tissue MSCs (SScgtMSCs) from SSc and to evaluate their functionality in comparison to healthy MSCs (hMSCs), in normal or hyaluronic acid (HA) culture media. Materials and Methods. Isolated cells were described by immunophenotyping of surface antigen make-up and by trilineage mesenchymal differentiation capacity. Colony-Forming Unit-Fibroblast (CFU-F) test and migration potential evaluated MSC functionality. Results. All types of MSCs displayed positivity for the following surface markers: CD29, CD73, CD90, CD105, CD44, and CD79a. These cells did not express CD34, CD45, HL-DR, and CD14. Isolated MSCs differentiated into osteoblasts, adipocytes, and chondroblasts. The frequency of CFU-F for SScgtMSCs was significantly lower than that of hMSCs (p = 0.05) and SScgMSCs (p = 0.004) in normal medium, and also markedly lower than that of SScgMSCs (p = 0.09) in HA medium. Following HA exposure, both SScgMSCs and SScgtMSCs migrated significantly less (p = 0.033 and p = 0.005, respectively) than hMSCs. Conclusions. A reduced functionality of MSCs derived from SSc as compared to hMSCs was observed. HA in culture medium appeared to significantly stimulate the migration potential of hMSCs.