Sérgio Alexandre Gehrke
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View article: Biomechanical behavior of two different surface treatments on dental implants with healing chambers in osteoporotic rabbits: an experimental study
Biomechanical behavior of two different surface treatments on dental implants with healing chambers in osteoporotic rabbits: an experimental study Open
View article: Early Osseointegration in a Sheep Tibia Model: Correlating Digital Periapical Radiograph Gray-Level and RGB-Derived Metrics with Histologic Tissue Composition
Early Osseointegration in a Sheep Tibia Model: Correlating Digital Periapical Radiograph Gray-Level and RGB-Derived Metrics with Histologic Tissue Composition Open
Objective: This study aimed to evaluate peri-implant tissue changes during early osseointegration using a combined approach of digital radiographic analysis, RGB pseudocolorization, and histomorphometry in a sheep tibia model. Materials an…
View article: Effect of the Diameter and Angulation Design of the Abutment Cementable Portion on Single Crown Retention: An In Vitro Experimental Study
Effect of the Diameter and Angulation Design of the Abutment Cementable Portion on Single Crown Retention: An In Vitro Experimental Study Open
Objective This study aimed to evaluate the influence of abutment geometry, specifically axial wall angulation and diameter, on the tensile strength of cemented prosthetic crowns using two types of abutments (Smart and Ideale) with identica…
View article: Residual-Free Micro–Nano Titanium Surfaces via Titanium Blasting and Single Acid-Etching: A Cleaner Alternative
Residual-Free Micro–Nano Titanium Surfaces via Titanium Blasting and Single Acid-Etching: A Cleaner Alternative Open
Background: Traditional sandblasted large-grit acid-etched (SLA) surface treatments frequently utilize alumina (Al2O3) blasting, which may leave residual particles embedded in implant surfaces, potentially compromising biocompatibility and…
View article: The Validation of an Experimental Model in Wistar Female Rats to Study Osteopenia and Osteoporosis
The Validation of an Experimental Model in Wistar Female Rats to Study Osteopenia and Osteoporosis Open
Background: Osteoporosis is a systemic disease characterized by a progressive decrease in bone density and deterioration of the tissue’s microarchitecture. This results in greater structural fragility and a higher risk of fractures. Osteop…
View article: Effects of Different Patient and Prosthetic Variables on Marginal Bone Behavior in Dental Implants: A Clinical Retrospective Study
Effects of Different Patient and Prosthetic Variables on Marginal Bone Behavior in Dental Implants: A Clinical Retrospective Study Open
Background and Objectives: This study aimed to evaluate marginal bone level (MBL) changes in implant-supported rehabilitation based on patient demographics, implant location, transmucosal abutment height, and crown emergence profile. Mater…
View article: Mesotherapy with hyaluronic acid solutions enriched by amino acids in the neck area: open-label uncontrolled, monocentric study
Mesotherapy with hyaluronic acid solutions enriched by amino acids in the neck area: open-label uncontrolled, monocentric study Open
The process of face aging is characterized by various signs, including nasolabial folds, sagging and hollowing, all of which worsen with age. In some subjects, this phenomenon is exacerbated by sun exposure, bad diet, genetic factor, pollu…
View article: Atrophic Anterior Mandible Treated With Sandwich Osteotomy Without Mini‐Screws and Mini‐Plates: A Case Report With 7 Years of Follow‐Up
Atrophic Anterior Mandible Treated With Sandwich Osteotomy Without Mini‐Screws and Mini‐Plates: A Case Report With 7 Years of Follow‐Up Open
Restoring the anterior mandible may be challenging due to both insufficient height and width of the edentulous alveolar ridge; thus, this case report aimed to treat anterior mandibular atrophy by using the inlay technique without the use o…
View article: Comparison Between Micro- and Micro-Nano Surface Texturization in the Initial Osseointegration Process: An Experimental In Vitro and In Vivo Preclinical Study
Comparison Between Micro- and Micro-Nano Surface Texturization in the Initial Osseointegration Process: An Experimental In Vitro and In Vivo Preclinical Study Open
Background: The physicochemical changes of the surface aim to improve cell adhesion, proliferation, and differentiation, that is, better biological interaction with the cells and, consequently, with the peri-implant tissues. In the present…
View article: Absorbable Dermal Filler for Saddle Nose Deformity Associated With Wegener's Granulomatosis
Absorbable Dermal Filler for Saddle Nose Deformity Associated With Wegener's Granulomatosis Open
View article: The Early Exposure Rate and Vertical Bone Gain of Titanium Mesh for Maxillary Bone Regeneration: A Systematic Review and Meta-Analysis
The Early Exposure Rate and Vertical Bone Gain of Titanium Mesh for Maxillary Bone Regeneration: A Systematic Review and Meta-Analysis Open
Background/Objectives: The use of titanium meshes in bone regeneration is a clinical procedure that regenerates bone defects by ensuring graft stability and biocompatibility. The aim of the present investigation was to evaluate the clinica…
View article: Preclinical Experimental Study on New Cervical Implant Design to Improve Peri-Implant Tissue Healing
Preclinical Experimental Study on New Cervical Implant Design to Improve Peri-Implant Tissue Healing Open
Objectives: In this preclinical study, we used an experimental rabbit model to investigate the effects of a new implant design that involves specific changes to the cervical portion, using a conventional implant design in the control group…
View article: Early Evaluation of a New Cervical Implant Design to Improve the Perimplant Tissues Healing: A Preclinical Experimental Study
Early Evaluation of a New Cervical Implant Design to Improve the Perimplant Tissues Healing: A Preclinical Experimental Study Open
Objectives: The aim of the present preclinical study, using rabbits as an experimental model, investigated the effects of a new implant design that incorporates specific changes in the cervical portion, using a conventional implant design …
View article: Peri-Implant Tissue Stability: A Series of Five Case Reports on an Innovative Implant Design
Peri-Implant Tissue Stability: A Series of Five Case Reports on an Innovative Implant Design Open
Background/Aim: The stability of peri-implant tissues is crucial for the long-term success of dental implant treatments. A new cervical implant design has been developed to address the challenges associated with peri-implant tissue stabili…
View article: Mechanical Behavior of Five Different Morse Taper Implants and Abutments with Different Conical Internal Connections and Angles: An In Vitro Experimental Study
Mechanical Behavior of Five Different Morse Taper Implants and Abutments with Different Conical Internal Connections and Angles: An In Vitro Experimental Study Open
The present study evaluated the mechanical behavior of five designs of Morse taper (MT) connections with and without the application of loads. For this, the detorque of the fixing screw and the traction force required to disconnect the abu…
View article: The efficacy of hyaluronic acid fragments with amino acid in combating facial skin aging: an ultrasound and histological study
The efficacy of hyaluronic acid fragments with amino acid in combating facial skin aging: an ultrasound and histological study Open
View article: ISQ for Assessing Implant Stability and Monitoring Healing: A Prospective Observational Comparison between Two Devices
ISQ for Assessing Implant Stability and Monitoring Healing: A Prospective Observational Comparison between Two Devices Open
Background: With the growing use of dental implants, there is an urgent need to determine a prosthetic placement protocol by assessing implant stability and monitoring healing. Implant Stability Quotient (ISQ) values are produced using den…
View article: Heating of metallic orthodontic devices during anti‐aging treatment with vacuum and electromagnetic fields: In vitro study
Heating of metallic orthodontic devices during anti‐aging treatment with vacuum and electromagnetic fields: In vitro study Open
Background The physical appearance of an individual plays a primary role as it influences the opinion of the viewer. For this reason, orthodontic therapy to improve perceived aesthetics is in high demand among patients. This factor, combin…
View article: Animal Models for Investigating Osseointegration: An Overview of Implant Research over the Last Three Decades
Animal Models for Investigating Osseointegration: An Overview of Implant Research over the Last Three Decades Open
Dental implants and bone augmentation are among dentistry’s most prevalent surgical treatments; hence, many dental implant surfaces and bone grafts have been researched to improve bone response. Such new materials were radiologically, hist…
View article: Patients’ Satisfaction with Mandibular Overdentures Retained Using Mini-Implants: An Up-to-16-Year Cross-Sectional Study
Patients’ Satisfaction with Mandibular Overdentures Retained Using Mini-Implants: An Up-to-16-Year Cross-Sectional Study Open
Background: Patients with edentulism often have an impaired functional, phonetic, and esthetic status, resulting in poor quality of life; hence, the mandibular overdenture has been considered the standard implant treatment for such patient…
View article: Does the index in Morse taper connection affect the abutment stability? An in vitro experimental study
Does the index in Morse taper connection affect the abutment stability? An in vitro experimental study Open
The present study compared three different implant and abutment sets of type Morse taper (MT) connection, with- and without-index, were analyzed regarding their mechanical behavior without and with cyclic load application simulating the ma…
View article: Effect of Different Dental Implant Prosthetic Joints on Marginal Bone Loss: Emerging Findings from a Bayesian Network Meta-Analysis (NMA) and Systematic Review
Effect of Different Dental Implant Prosthetic Joints on Marginal Bone Loss: Emerging Findings from a Bayesian Network Meta-Analysis (NMA) and Systematic Review Open
Background: A key point in assessing dental implant prosthetic joints is their mechanical strength and biological response under the masticatory loading. The aim of the present systematic review was to evaluate the marginal bone loss and p…
View article: Fibroblasts and osteoblasts behavior after contact with different titanium surfaces used as implant abutment: An in vitro experimental study
Fibroblasts and osteoblasts behavior after contact with different titanium surfaces used as implant abutment: An in vitro experimental study Open
View article: Oral Surgery and Dental Implants in Patients with Chronic Kidney Disease: Scoping Review for Oral Health Status
Oral Surgery and Dental Implants in Patients with Chronic Kidney Disease: Scoping Review for Oral Health Status Open
The number of chronic kidney disease (CKD) patients requiring renal replacement therapy is increasing, often exhibiting oral manifestations including periodontal disease, gingival hyperplasia, altered saliva composition, and uremic stomati…
View article: Critical‐size defects reconstruction with four different bone grafts associated with <scp>e‐PTFE</scp> membrane: A histomorphometric experimental in vivo study
Critical‐size defects reconstruction with four different bone grafts associated with <span>e‐PTFE</span> membrane: A histomorphometric experimental in vivo study Open
Objectives The goal of this study was to assess the newly formed bone and the remnant biomaterial by comparing four different bone grafts used to treat critical‐size defects, associated or not with the non‐resorbable membrane. Materials an…
View article: RETRACTED: De Aza et al. A Si-αTCP Scaffold for Biomedical Applications: An Experimental Study Using the Rabbit Tibia Model. Appl. Sci. 2017, 7, 706
RETRACTED: De Aza et al. A Si-αTCP Scaffold for Biomedical Applications: An Experimental Study Using the Rabbit Tibia Model. Appl. Sci. 2017, 7, 706 Open
The journal retracts the article “A Si-αTCP Scaffold for Biomedical Applications: An Experimental Study Using the Rabbit Tibia Model” [...]
View article: New strategy for osseodensification during osteotomy in low-density bone: an in vitro experimental study
New strategy for osseodensification during osteotomy in low-density bone: an in vitro experimental study Open
The goal of this in vitro study was to evaluate and propose a new strategy for osseodensification technique using a drill counterclockwise to densification of bone of low density. Synthetic bone blocks of two different low densities (type …
View article: Evaluation of Behavior of Castable versus Machined Solid Abutments for Morse Tapper Implant Connection: A Clinical Retrospective Study
Evaluation of Behavior of Castable versus Machined Solid Abutments for Morse Tapper Implant Connection: A Clinical Retrospective Study Open
Objective: The primary objective of the present retrospective clinical study was to evaluate and compare the clinical performance presented by castable abutments developed for the MT system versus intermediate machined abutments, specifica…
View article: Influence of Restorative Material on the Distribution of Loads to the Bone in Hybrid Abutment Crowns—In Vitro Study
Influence of Restorative Material on the Distribution of Loads to the Bone in Hybrid Abutment Crowns—In Vitro Study Open
Background: The objective of this study was to evaluate the load transmitted to the peri-implant bone by seven different restorative materials in single-unit rehabilitations with morse taper implants using a strain gauge. Materials: In a p…
View article: Socket Shield Technique to Improve the Outcomes of Immediate Implant: A Systematic Review and Meta-Analysis
Socket Shield Technique to Improve the Outcomes of Immediate Implant: A Systematic Review and Meta-Analysis Open
Background: The socket shield technique (SST) could address the challenges in immediate implant placement by minimizing post-extraction bone resorption while maintaining soft tissue levels. This study aimed to summarize the available evide…