Molar socket shield technique with immediate implant placement maintains stable tissue architecture at 5- to 7-year follow-up: A clinical series.

Deep learning-based segmentation of enamel, cementum, alveolar bone, and gingiva in periodontal ultrasound images.

Long-term dental implant success depends on a biologic "race to the surface," in which osteogenic cells, peri-implant soft-tissue cells, and bacterial pathogens compete for early dominance at the implant-tissue interface. Because implant surface design is often optimized for one objective at the expense of another (e.g., micro-roughness to accelerate osteoconductivity but with increased plaque-retention risk; relatively smooth transmucosal surfaces to discourage bacterial attachment despite uncertainty regarding optimal soft-tissue integration), strategies that enhance peri-implant health without forcing topographical trade-offs are needed. Ultraviolet (UV) photofunctionalization-by removing storage-acquired hydrocarbons ("biological aging") and converting surfaces to a high-energy, superhydrophilic state-has been proposed as a chairside, topography-preserving approach to improve interfacial biology. This systematic review evaluates whether UV photofunctionalization of titanium and zirconia surfaces provides clinically relevant advantages for (1) reduction of bacterial attachment and biofilm formation, (2) peri-implant soft-tissue responses relevant to mucosal sealing, and (3) human clinical outcomes. After systematic literature search, screening and full-text evaluation, a total of 34 articles, including 9 bacterial/biofilm, 13 soft-tissue (1 overlapping between bacterial and soft-tissue), and 13 clinical studies were selected. Findings were synthesized qualitatively with attention to protocol heterogeneity (UV wavelength band, exposure duration, device configuration, and material and surface types). Across experimental models, UV photofunctionalization most consistently reduced early bacterial attachment and/or early biofilm accumulation across several titanium surface topographies, supporting an early anti-adhesive and biofilm-suppressive phenotype. Soft-tissue studies generally demonstrated enhanced fibroblast/epithelial attachment, spreading, and functional behaviors relevant to sealing on both titanium and zirconia, although the optimal underlying topography for soft-tissue integration remains unresolved. Clinically, the most consistent signal was accelerated and enhanced implant stability development, while selected studies also suggested favorable trends in peri-implant soft-tissue parameters and/or crestal bone maintenance. However, clinical outcomes remained variable and were limited by heterogeneity in UV protocols, surface systems, endpoints, and follow-up duration. UV photofunctionalization can be conceptualized as a surface-agnostic physicochemical reactivation technology: a topography-preserving enhancement that restores high surface energy and favorable surface chemistry without altering the underlying surface architecture. Current evidence for this concept is strongest for titanium, whereas supportive evidence for zirconia is emerging primarily from soft-tissue and interface-focused models. This interface-first, positive-sum strategy may allow clinicians to select zone-specific topographies (e.g., smooth transmucosal regions and rough endosteal regions) while maximizing soft-tissue affinity and suppressing early colonization. Although current clinical evidence most strongly supports accelerated osseointegration/stability development, further longitudinal studies with standardized peri-implant health, microbiologic, and mucosal inflammatory endpoints are needed to clarify the long-term translational impact of UV photofunctionalization on peri-implant disease prevention.

BackgroundMandibular two-implant overdentures are considered the standard of care for edentulous patients. The attachment system and the shape of the bone crest can significantly influence biomechanical behaviours. This study aimed to evaluate stress distribution in mandibular implant-supported overdentures using locator and bar attachments across various bone crest designs.Materials and methodsFEA was performed on mandibular overdentures supported by two implants. Three crest configurations (flat, convex, and irregular) were modelled with either bar or locator attachments. A vertical force of 100 N was applied in three loading conditions: anterior, unilateral molar, and bilateral molar. Maximum von Mises stresses and principal stresses were assessed.ResultsAnterior loading resulted in the highest stresses across all groups, with peak values reaching 12 N/mm² in the convex and irregular models. Bilateral molar loading consistently produced the lowest and most uniform stress distributions, while unilateral loading caused intermediate stress concentrations on the working side. Uneven platforms significantly increased stress levels, particularly under unilateral bar loading. Locator attachments showed slightly reduced stresses after bilateral loading in irregular crest configurations. Stress concentrations were primarily localized at the implant neck and prosthetic connectors.ConclusionStress distribution in mandibular overdentures is significantly influenced by loading direction, crest shape, and attachment mechanism. Anterior loading poses the highest biomechanical risk, while bilateral posterior loading provides optimal conditions. Vertical discrepancies in implant platforms heighten stress concentrations, underscoring the importance of careful surgical planning. Locator attachments offer limited biomechanical advantages in uneven crest scenarios, supporting their use in anatomically challenging cases.

While tooth-implant supported prostheses (TISP) are commonly used in the posterior region, few studies report on their anatomical suitability or mechanical behavior in the anterior mandible. This study analyzed CBCT data from patients with mandibular anterior edentulism and constructed three-dimensional finite element models to investigate the anatomical constraints of this region and to compare the biomechanical behavior of different restorative designs involving TISP. Based on CBCT images of 524 patients, 3D reconstruction using Mimics 21.0 was performed to measure available alveolar bone buccolingually at 1mm, 3mm, and 5mm apical to the crest. Two finite element models were established to represent clinically relevant restorative strategies for extensive mandibular anterior tooth loss: an implant-implant supported fixed partial denture and a tooth-implant supported fixed partial denture. These models were compared in terms of stress distribution under different oblique loading conditions. Alveolar width generally increases with depth from the crest. The available mandibular anterior alveolar bone width is significantly influenced by gender and age. Specifically, bone width measurements were statistically significantly greater in male patients than in female patients, and the width at most measured depths showed a stable negative correlation with age. Biomechanically, stress concentrations were mainly observed at the implant-abutment neck and the crestal cortical bone, and stress increased with increasing loading angle (overjet). Within the assumptions of this simplified finite element model, the tooth-implant supported design showed a comparatively different stress distribution pattern and may provide biomechanical reference for selected mandibular anterior restorative scenarios. Mandibular anterior tooth-implant supported and implant-implant supported restorations showed different stress distribution patterns under oblique loading. Stress was mainly concentrated at the implant-abutment neck and adjacent crestal cortical bone, and greater loading angles were associated with higher stress levels. These findings may provide comparative biomechanical information for restorative planning in selected cases, but further experimental and clinical studies are needed to confirm their clinical relevance.

A recently introduced narrow osseointegrated wedge-shaped implant has been proposed for the treatment of thin alveolar ridges that are not suitable for placement of root form screw-type implants without bone augmentation procedures. The wedge implant was designed with the aim of preserving the buccal bone plate while maintaining adequate mechanical and prosthetic performance. This multiple split-mouth case report in the posterior maxilla compares wedge-shaped and screw-type implants. Wedge implants (1.8 mm thickness) were placed in a narrow ridge (mean width 4.05 mm), whereas screw implants (4.25 mm diameter) were placed in a wider ridge (mean width 6.5 mm). Screw implant sites were prepared with standard drills. Wedge implant sites were prepared using the piezoelectric technique and wedge ridge expanders. Implant stability, marginal bone level, ridge width changes and peri-implant soft tissue conditions were evaluated over a 14-month follow-up period. All implants achieved osseointegration. Screw implants demonstrated marginal bone loss between 1.2 and 2 mm and gingival recession. Conversely, wedge implants, despite being placed in thinner ridges, did not exhibit marginal bone loss and showed healthy and stable peri-implant soft tissues and horizontal thickening of the bone crest. Within the limitations of a case report, wedge-shaped implants may represent a minimally invasive alternative to conventional screw implants and bone augmentation in narrow ridges, promoting bone preservation and favourable aesthetic outcomes.

Objective: To evaluate the clinical efficacy of liquid-phase concentrated growth factor (LPCGF) alone or in combination with low-level laser therapy (LLLT) under local micro-trauma activation for endogenous healing in the treatment of gingival papilla recession, and to explore the influencing factors. Methods: Patients with aesthetic complaints caused by gingival papilla recession who sought treatment at the Department of Periodontology, Stomatological Hospital of Xi'an Jiaotong University from July 2022 to August 2023 were enrolled in this study. A total of 155 gingival papilla recession sites from 40 patients were included. All sites were numbered after preoperative preparation and randomly divided into two primary groups using a random number table: micro-trauma group (20 patients, 81 sites) and injection-only group (20 patients, 74 sites). Subsequently, each primary group was further randomly subdivided into two subgroups respectively, forming four subgroups in total: Group T1 (micro-trauma combined with LPCGF injection, 10 patients, 37 sites); Group T2 (micro-trauma combined with LPCGF injection and LLLT, 10 patients, 44 sites); Group C1 (LPCGF injection alone, 10 patients, 33 sites); Group C2 (LPCGF injection combined with LLLT, 10 patients, 41 sites). Preoperative cone-beam CT (CBCT) examination and clinical measurements were performed to obtain anatomical parameters, including distance from bone crest to proximal contact point, crown width-length ratio, proximal contact length, interradicular distance and alveolar bone thickness. Meanwhile, gingival biotype, black triangle parameters and Norland & Tarnow classification of gingival papilla recession were recorded. The black triangle height (BTH) and black triangle area (BTA) were measured, and their changes (ΔBTH, ΔBTA) were assessed at 12 months postoperatively. Results: A total of 40 patients were enrolled, including 2 males and 38 females, with age of (30.67±5.20) years, involving 155 sites with gingival papilla recession. At 12 months postoperatively, the reductions in BTH and BTA were (1.21±0.47) mm and 0.75 (0.51, 1.10) mm2 in Group T1, 1.03 (0.61, 1.27) mm and 0.85 (0.55, 1.11) mm2 in Group T2, (0.42±0.65) mm and 0.21 (0.02, 0.94) mm2 in Group C1, and (0.51±0.64) mm and 0.29 (0.02, 0.59) mm2 in Group C2, respectively. Significant improvements in BTH and BTA were observed in all four groups compared with baseline (P<0.001, P<0.001, P<0.01, and P<0.01, respectively). No significant intergroup differences in ΔBTH and ΔBTA were found between Group T1 and Group T2, as well as between Group C1 and Group C2 (both P>0.05). However, visual analogue scale (VAS) assessments of swelling and pain within 7 days postoperatively demonstrated that, compared with the Group T1 and Group C1, the Group T2 and Group C2 presented significantly lower swelling VAS scores from the night of operation to postoperative day 3 (P<0.05), as well as significantly improved pain VAS scores from the night of operation to postoperative day 2 (P<0.05). For thin gingival biotype sites at 3, 6 and 12 months postoperatively, the improvements in ΔBTH and ΔBTA in the micro-trauma groups (Group T1+Group T2) were significantly superior to those in the injection-only groups (Group C1+Group C2) (ΔBTH: Z=3.64, -4.01, 3.46; ΔBTA: Z=-4.18, t=-6.02, t=-7.43; both P<0.001). Canonical correlation analysis revealed a significant correlation between the anatomical variable set and clinical efficacy indicators, with the first canonical correlation coefficient of R=0.486 (P<0.001). According to the standardized canonical weights of variables, alveolar bone thickness presented the strongest positive effect (weight=0.788), while interradicular distance showed a significant negative effect (weight=-0.516). Conclusions: Minimally invasive LPCGF therapy, alone or in combination with LLLT, effectively improves gingival papilla recession. Bone thickness and interproximal root distance are key anatomical determinants of treatment efficacy.

ABSTRACT Background: Occlusal force differs between natural and rehabilitated dentition, affecting the load transferred to the bone. The concept of utilizing four implants to rehabilitate a maxillary arch using axial and tilted implants changed the perspective of implant-supported full arch rehabilitation. Occlusal load transmitted to the crestal bone is affected by the type of dentition or prosthesis opposing an arch. Currently, the dental literature lacks studies examining the relationship between crestal bone loss around all-on-four implants and varying opposing dentitions. Objective: To assess the impact of opposing dentition on the crestal bone changes around the peri implant region of Maxillary all-on-four implants. Methods: A retrospective case-control study of 24 maxillary all-on-four implant-supported prosthesis (ISP) samples was divided into 2 groups of 12 each: Group 1 opposing natural dentition and Group 2 opposing all-on-four ISP. Participants were rehabilitated with the same implant system and FP3 prosthesis, and were treated by a single clinician. Intra-oral periapical radiographs were taken with the paralleling cone technique to measure crestal bone loss. A Wilcoxon signed rank test was used within groups, and a Mann-Whitney U test between groups. Results: Crestal bone loss was observed in Group 1 tilted implants with a median of -0.64±0.52mm (P&lt;0.05), whereas crestal bone height increase was observed in Group 2 tilted implants with a median of 0.05±0.39mm. Comparison within group 2 showed a significant difference in the distal aspect of the tilted implants, with a mean bone loss of -0.48±0.38 mm in the mandibular arch (P&lt;0.05). In contrast, the mesial aspect of the mandibular implants showed bone gain. Conclusion: Maxillary all-on-four implants opposing natural dentition showed increased crestal bone loss compared to those opposing mandibular all-on-four implants. The bone changes around axial and tilted implants also varied, with more bone loss observed in maxillary tilted implants, opposing natural dentition.

Dental pulp cell\u2013derived conditioned culture media promotes periodontal repair through immunomodulation and bone regeneration

To evaluate long-term crestal bone level changes (ΔCBL) and prevalence of peri-implant conditions according to the type of implant-supported fixed dental prosthesis (IFDP), and to identify implant-, prosthetic-, and patient-related factors associated with ΔCBL. This single-center observational study evaluated patients rehabilitated with single crowns (SCs), splinted crowns (SPs), or bridges (BRs) on tissue-level implants after 10 and 25 years of function. Standardized clinical and radiographic evaluations were performed, and peri-implant conditions were diagnosed according to established consensus definitions. A total of 147 patients with 233 implants were included. The prevalence of peri-implantitis (PI) increased from 10 to 25 years, from 2.3% to 7.8% for SC, from 1.6% to 6.3% for SP, and from 0% to 4.9% for BR, with no significant differences between IFDP types at either time point (p ≥ 0.95). SP tended to have higher peri-implant mucositis (PM) rates at 25 years (87.3%), compared to SC (74.4%) and BR (80.5%). Mean ΔCBL was -0.37 ± 0.91 mm for SC, -0.25 ± 0.85 mm for SP, and -0.70 ± 1.0 mm for BR, with no significant differences between IFDP types (p = 0.37). Multivariate analyses demonstrated that greater ΔCBL was significantly associated with incisor region location (-0.74 mm), increased probing depth (-0.16 mm per mm), and suppuration on probing (-0.97 mm), all p ≤ 0.05. In contrast, prosthetic retention, marginal misfit, and prosthet emergence geometry were not significantly associated with ΔCBL. Over 25 years, the type of IFDP did not significantly affect ΔCBL or the prevalence of PM and PI around tissue-level implants. Long-term bone stability was primarily influenced by implant location in the incisor region, increased probing depths, and the presence of suppuration.

To evaluate the long-term prevalence of buccal ridge concavity (BRC) following implant placement with simultaneous contour bone augmentation (CBA). Adult patients with at least one single-tooth non-molar implant-supported prosthesis and no diagnosis of peri-implantitis were included in this exploratory cross-sectional study. Clinical, digital, and patient-reported outcomes measures (PROMs) were collected. Intra-oral scans were analyzed at multiple apico-coronal levels with dedicated software to assess the presence of BRC. A total of 186 patients (211 implants) were analyzed over a mean follow-up of 11.4 ± 1.4 years. BRC was observed in 100% of sites and patients, with a mean value of -0.83 ± 0.45 mm at the mucosal margin, -0.62 ± 0.39 mm at 3 mm apical, and -0.47 ± 0.32 mm at 5 mm apical. Multivariate analysis at 3 mm apical showed greater BRC in males (+0.165 mm, p = 0.003), premolar sites (+0.110 mm, p = 0.03), and when implants ≥ 12 mm were placed (+0.141 mm, p = 0.008). The greater the keratinized mucosa, the smaller the BRC, and the greater the crestal bone loss, the higher the BRC. PROMs indicated high satisfaction with esthetics, function, treatment expectations, tolerability of the overall procedure, and oral hygiene; OHIP-14 scores were low (2 ± 4). Implant placement with CBA does not fully restore alveolar ridge volume in non-molar sites, with all cases showing BRC, particularly at the most coronal aspect. However, patient-reported satisfaction remained high.

The aim of the current systematic review and meta-analysis is to assess the effect of platelet-rich fibrin (PRF) on soft tissue augmentation around dental implants. The randomized clinical trials (RCT) that utilized PRF in soft tissue augmentation around dental implants were selected from different databases. The following parameters were measured: keratinized mucosa width (KMW), soft tissue thickness (STT), and crestal bone loss (CBL). The primary outcome was STT, while secondary outcomes included KMW and CBL. The outcomes were measured at baseline, 3 months, and 6 months. Thirteen articles were identified, including 264 patients with ages ranging from 18 to 62 years old, among which 9 articles were included in the meta-analysis. After 3 months of follow-up, there were no differences between implants placed with PRF and implants placed with connective tissue graft (CTG) in the STT (Chi2 = 0.46, P = 0.79; I2 = 0%) and in the KMW (Chi2 = 0.39, P = 0.68; I2 = 0%). Moreover, after 6 months, the meta-analysis of STT (95% CI: 0.05 to 1.15; P = 0.03, I2 = 82%) and KMW (95% CI: 0.25 to 1.04, P = 0.002, I2 = 0%) showed significant improvement in the implant with PRF in comparison to implant only. However, CBL didn't show a significant difference between both the implant combined PRF and the implant only group after 6 months (95% CI: - 0.69 to 0.20; P = 0.27). In conclusion, PRF enhances peri-implant soft tissue augmentation by showing a short-term improvement of the treatment outcomes however, its long-term clinical effect on peri-implant tissue stability remains uncertain.

Treatment for excessive gingival display, commonly known as gummy smile, remains challenging. This cross-sectional study investigates the clinical use of soft tissue CBCT (ST-CBCT) to measure the hard and soft tissues in the dento-gingival unit to diagnose and plan treatment for excessive gingival display. The dento-gingival complex of maxillary anterior teeth was investigated, including gingival thickness, alveolar bone thickness, and supracrestal tissue attachment. A detailed clinical treatment sequence of the therapeutic journey of a patient with altered passive eruption is presented to illustrate the clinical application of CBCT, from diagnosis to the final outcome, using Digital Smile Design. Thirty patients with altered passive eruption were evaluated. The mean distance from the gingival margin to the bone crest was 4.2 ± 1.1 mm. The mean gingival thickness was 1.1 ± 0.3 mm, and crestal labial bone thickness was 1.0 ± 0.4 mm. The majority presented thick gingiva (≥ 1 mm, 63.4%), and nearly half of all teeth (48%) showed thick crestal bone (≥ 1 mm). Male participants demonstrated a higher prevalence of thin crestal bone than female participants (66.7% vs 49.2%; P = 0.007). Contralateral teeth exhibited statistically significant differences in the distance from the cementoenamel junction to the bone crest, soft tissue thickness, and bone thickness. The dento-gingival unit presented inter- and intra-individual variability. Tomographic diagnosis, classification, and treatment planning of altered passive eruption should be conducted on a tooth-by-tooth basis for higher surgical precision and predictability, ultimately improving patient care. Soft tissue CBCT offers a comprehensive 3D overview of the soft and hard tissues in the dento-gingival unit.

To evaluate the acceptability, deviation, and efficiency of two automated, artificial intelligence-driven implant planning methods compared with a human-based approach for single-tooth replacement. Data of 32 patients, involving a single edentulous span, were retrospectively obtained, including cone-beam computed tomography (CBCT) and intraoral scans. Three implant planning methods were applied per case: human-based method (HP), automated CBCT-image-based method (AA), and automated CBCT-segmentation-based method (RL). Implant position acceptability was assessed by three prosthodontists using a standardized three-point scale on 12 surgical and prosthetic parameters. Using HP as a reference, angular and linear positional deviations were quantified at the implant platform and apex. Total planning time was recorded. Statistical analyses included Friedman's chi-square test, Wilcoxon test, ANOVA with Tukey's post hoc tests, and intraclass correlation coefficient (α = 0.05). No significant differences were observed between RL and HP for most surgical and prosthetic parameters except for the crestal bone and platform-planned gingival margin distance. At the same time, AA showed significantly lower scores than both methods. No significant differences were found among the three methods for implant-mandibular canal distance. AA demonstrated significantly higher positional deviation than RL (p < 0.001). Total planning time differed significantly among methods. HP (14.1 ±2.44 min), RL (8.91 ±2.89 min), and AA (3.59 ±1.44 min) with all pairwise comparisons significant (p < 0.001). Compared to HP, RL demonstrated similar surgical and prosthetic acceptability with faster planning time. AA was the most efficient but showed lower acceptability than both HP and RL, and demonstrated greater positional deviation than RL.

To evaluate the clinical, digital and histological outcomes of bone regeneration using autologous plasma rich in growth factors (PRGF®) for alveolar ridge preservation (ARP), compared to an anorganic bovine bone (ABB) graft. A randomized clinical trial was conducted in adult subjects requiring tooth extraction and subsequent implant placement. The effect of the therapy was assessed by clinical, intraoral and CBCT scans, and patient-reported outcomes at post-extraction, before implant placement and 1 year after implant loading. Bone core biopsies were also collected four months post-extraction for histological and immunohistochemical analysis. A total of 26 patients were included in this study. IOS and CBCTs demonstrated a reduction of the bone crest over time, with statistically significant differences within but not between groups. The PRGF® group exhibited improved early soft tissue healing, lower inflammation index, and reduced patient-reported discomfort. PRGF® group showed a trend toward higher mineralized tissue and fewer TRAP-positive cells, indicating reduced osteoclastic activity. In addition, soft tissue measurements increased from extraction to implant placement in the PRGF® group, while ABB prevented early bucco-lingual collapse regardless of the thickness of the facial bone. Both ABB and PRGF® yielded similar clinical, digital dimensions, histomorphometric results, and patient-reported outcomes in ARP therapy. PRGF® histology demonstrated no residual material in the grafted area. These findings support the use of PRGF as a biologically active, autologous material for ARP in addition to other options such as xenografts. According to our results, PRGF seems to offer advantages in soft tissue healing and patient-centered outcomes.

This prospective clinical study aimed to evaluate the effectiveness and clinical applicability of guided bone regeneration (GBR) using a combination of carbonate apatite granules and poly(lactic acid/caprolactone) (PLCL) membranes in patients with alveolar bone deficiencies. A single-arm interventional study was conducted involving 16 participants and 18 grafted sites. GBR was performed using carbonate apatite granules mixed with saline and covered with PLCL membranes. Radiopaque markers were placed at the grafted sites to enable standardized radiographic evaluation. Pre- and post-operative computed tomography (CT) scans were analyzed to assess changes in crestal bone width and cross-sectional bone area. Postoperative complications were monitored at multiple time points, and statistical analyses were performed to evaluate bone augmentation outcomes. Radiographic analysis revealed a statistically significant increase in crestal bone width and cross-sectional bone area following GBR (P < 0.01). Minor wound dehiscence was observed in 33.3% of cases at 2weeks and 22.2% at 1month, but no infections occurred at any time point. At 3 and 6months, all sites showed uneventful healing. The combination of carbonate apatite and PLCL membranes demonstrated favorable biocompatibility and mechanical stability, contributing to predictable bone augmentation. GBR using carbonate apatite granules and PLCL membranes resulted in significant bone regeneration with low complication rates. This synthetic material combination may offer a reliable approach for GBR. Further studies with larger cohorts and longer follow-up are recommended to validate long-term outcomes and clinical relevance.

Objectives: The impact of dental and oral health conditions on the oral health state and oral health-related quality of life (OHRQL) in geriatric in-hospital (GIH) patients requires clarification. For this reason, this exploratory and hypothesis-generating study aimed to examine the associations between intra-oral risk factors (IRFs), masticatory functions (MFs), and treatment satisfaction (TS) in this context. Methods: This retrospective cohort study enrolled a total of 81 patients requiring immediate prosthetic treatment (IPT) by consultant dentists at Sana Hospital, Coburg, Germany. The evaluation focused on oral and dental state and MFs such as a modified DMFT and Eichner Index (EI), as well as on IRFs such as inflammation, mucogingival junction insufficiency (MGJI), severe bone crest atrophy (SBCA), and oral pain. The outcomes were measured after IPT using MF improvement (MFI) as the primary outcome and TS as the secondary outcome. Results: The outcomes (p < 0.05) were evaluated using objective measures such as the calculations of the EI, the EI modifications and the modified DMFT index. The results were associated, respectively, with the different IRFs and with specific SBCA. A total of 85% of GIH patients suffered from severe bone crest atrophy (SBCA), which showed a significant association with MF measured using EI after IPT (p = 0.001). MFI after IPT was associated with the EI before IPT (p < 0.000). The achieved MFI was finally associated with the untreated sample (all patients, p < 0.000) and with the presence or absence of the following IRFs at baseline: inflammation (p < 0.003), absence of oral pain (p < 0.000), presence of SBCA (p < 0.000), and absence of MFI (p < 0.000). A total of 78% of GIH patients confirmed treatment satisfaction (TS) after IPT, which was significantly and strongly associated with SBCA (p < 0.003). Conclusions: Oral health was primarily impaired by SBCA and can be measured by the analysis of EI and DMFT associations, which provided MFI and TS as outcomes for OHRQL.

Residual ridge and peri-implant outcomes in mandibular overdentures retained by four Locator versus four bar attachments: a 10-year retrospective analysis.

Contemporary dental implant systems are continuously evolving in terms of surface characteristics, as well as macro- and micro-design. This study evaluates the performance of recent Straumann® implants-specifically comparing Bone Level Tapered (BLT) and Bone Level Conical (BLC) designs-in relation to peri-implant bone resorption and immediate loading protocols. A total of 84 BLT implants and 84 BLC implants were placed in 78 patients between 2023 and 2025 across several clinics in Spain. Radiographic and periodontal probe measurements were performed to assess crestal bone level changes at one year post-placement. This retrospective cohort study focused on primary outcomes including 1-year survival rates and the evaluation of marginal bone loss (MBL). The most significant result was the 98.8% success rate observed for BLC implants. While both Straumann® tapered implants represent excellent treatment options, BLC implants demonstrated superior improvements across all evaluated parameters. Future research should focus on identifying areas for further enhancement and comparing their performance with other leading implant systems.

Immediate implant placement requires early healing and preservation of crestal bone; however, limited evidence exists regarding the comparative effect of hydrophilic implant surfaces on early bone healing and crestal bone level changes. Therefore, it is of interest to evaluate crestal bone level changes around hydrophilic and non-hydrophilic dental implants placed in immediate extraction sites. Hence, a total of 30 implants were allocated into two groups. Following atraumatic extraction, implants were placed, and crestal bone levels were assessed at baseline, 1, 3, and 6 months. The hydrophilic group demonstrated greater early bone-forming activity with reduced crestal bone changes at 1 month compared to the non-hydrophilic group. However, no statistically significant difference was observed between the groups at 3 and 6 months. Hydrophilic implants may therefore enhance early crestal bone formation in immediate extraction cases.