Gerhard Iglhaut

University Medical Center Freiburg · Oral and Maxillofacial Surgery Clinic

Objectives The limited number of studies using digital workflows to measure soft tissue changes depend on the cemento-enamel junction (CEJ), which has been reported to be unreliable. Our primary objective was to apply an advanced digital assessment method, measuring independent from the CEJ to evaluate the modified coronally advanced tunnel techniq...

Background The stability of implant-abutment connection is crucial to minimize mechanical and biological complications. Therefore, an assessment of the microgap behavior and abutment displacement in different implant-abutment designs was performed. Methods Four implant systems were tested, three with a conical implant-abutment connection based on...

Dental implants have been established as successful treatment options for missing teeth with steadily increasing demands. Today, the primary areas of research in dental implantology revolve around osseointegration, soft and hard tissue grafting as well as peri‐implantitis diagnostics, prevention, and treatment. This review provides a comprehensive...

A recently released commercially available novel porcine acellular dermal matrix (PADM) appears to possess acceptable biologic and clinical properties to be considered as an acceptable soft tissue replacement material. The aim of these three case reports is to present the treatment of multiple gingival recession by means of different variations of...

Background The proteome of the peri-implant crevicular fluid (PICF) has not been systematically investigated. The aim of the present study was to reveal the proteome biology of dental implants affected with peri-implantitis. Methods Patients with at least one diseased implant were included (probing depth ≥ 6 mm, ≥ 3 mm peri-implant radiological bo...

Background The proteome of the peri‐implant crevicular fluid (PICF) has not been systematically investigated. The aim of the present study was to reveal the proteome biology of dental implants affected with peri‐implantitis. Methods Patients with at least one diseased implant were included (probing depth ≥6 mm, ≥3 mm peri‐implant radiological bone...

Purpose The present prospective study evaluates the association between new bone formation rate in the iliac onlay graft and sex steroid hormone serum levels. Methods A total of 15 partially or completely edentulous postmenopausal females and 9 males with less than 5 mm height of the remaining alveolar bone underwent iliac onlay grafting followed...

In oral- and maxillofacial bone augmentation surgery, non-vascularized grafts from the iliac crest demonstrate better clinical performance than alveolar bone grafts. The underlying mechanisms are not fully understood but are essential for the enhancement of bone regeneration scaffolds. Synchrotron Radiation µ-CT at a pixel size of 2.3 μm was used t...

Objectives: The aim of this study was to comprehensively assess the literature in terms of the effect of peri-implant mucosal thickness on esthetic outcomes and the efficacy of soft tissue augmentation procedures to increase the mucosal thickness with autogenous grafts or soft tissue substitutes. Material and methods: Two systematic reviews (SR)...

Abstract Objective The objective of the present study was to examine the clinical and immunological parameters in samples collected from the peri-implant crevicular fluid (PICF) of machined titanium (M) abutments compared to titanium abutments with a laser-microtextured surface (LMS) on dental implants. Material and methods A total of 40 patients w...

Background: Aim of the pilot study was the histologic classification of the inflamed peri-implant soft tissue around ceramic implants (CI) in comparison to titanium implants (TI). Methods: Peri-implant tissue were retrieved from 15 patients (age 34-88 years, 7 male/8 female) with severe peri-implantitis [8 CI, 7 TI]. The peri-implant soft tissue...

Background The performance of dental implants in controlled clinical studies is often investigated in homogenous populations. Observational studies are necessary to evaluate the outcome of implant restorations placed in real-life situations, according to standard practice, and to assess the needs of the patients. The aim of this non-interventional...

Objectives To analyze the influence of the width of keratinized mucosa (KM) on the development and resolution of experimental peri‐implant mucositis lesions at abutments with different microstructures in humans. Material and methods In a randomized, controlled study, a total of 28 patients had received 28 target implants exhibiting a KM ≥2 mm. The...

Objectives: To assess the onset, progression and resolution of experimentally induced peri-implant mucositis lesions at abutments with different microstructures in humans. Material & methods: In a randomized, controlled, interventional two-center study, a total of 28 patients had received 28 target implants and were randomly allocated to either...

Objectives: To histologically assess the association between the horizontal mucosal thickness (MT) at implant sites with the integrity and thickness of the buccal bone plate in a canine model. Materials and methods: Two-piece titanium implants were placed at chronic-type lateral ridge defects. The resulting vestibular dehiscence-type defects (ve...

Objectives: To histologically evaluate the effectiveness of a porcine derived collagen matrix (CM) and a subepithelial connective tissue graft (CTG) for coverage of localized gingival recessions. Materials and methods: Chronic single Miller Class I-like recessions were created at the buccal at the canines and at the third and fourth premolars in...

The soft tissues around dental implants are enlarged compared with the gingiva because of the longer junctional epithelium and the hemidesmosonal attachments are fewer, suggestive of a poorer quality attachment. Inflammatory infiltrates caused by bacterial colonization of the implant‐abutment interface are thought to be one of the factors causing e...

Hypersensitivity reactions to titanium (Ti) are very rare. Thus, we assessed the proinflammatory response and also potential tolerance favoring in vitro reactivity of human blood lymphocytes and monocytes (PBMC) to Ti in healthy individuals (14 without, 6 with complication-free dental Ti implants). The proliferation index (SI) in lymphocyte transfo...

The aim of the present study was to investigate the impact of pen-implant soft tissue dimensions, especially keratinized mucosa, and the occurrence of soft tissue recession after implant uncovering by means of a buccal advancement flap. In the present investigation, 26 patients (14 women and 12 men) between the ages of 35 and 60 years in need of im...

Aim: The aim of the present study was to evaluate bone formation in vertical ridge augmentations using particulate bone grafting material stabilized by a resorbable polymer. Material and methods: Three vertical defects were created in the maxillary alveolar ridge of six Beagle dogs 3 months after the removal of all premolars. One defect in each...

Objectives To assess the safety and efficacy of a rigid synthetic barrier system in a shell technique for localized alveolar ridge augmentation. Materials and methodsSaddle-type defects (n=4 each) were prepared in the lower jaws of six fox hounds. At two defects, the outer contours were reconstructed using polylactic acid (D and L isomers) (PDDL) p...

To (i) investigate the influence of different extensions of a laser microgrooved abutment zone on connective tissue attachment and (ii) assess the impact of a repeated abutment dis-/reconnection on soft- and hard-tissue healing. Titanium implants were inserted epicrestally in the lower jaws of six dogs. Healing abutments with either partially (LP)...

To address the following focused question: What is the quality of reporting of pre-clinical research for the study and treatment of mucositis/peri-implantitis? Electronic databases of the PubMed and the Cochrane Library were searched for animal studies reporting on pathogenesis or therapy of either peri-implant mucositits or peri-implantitis and co...

Defects in the layer of buccal bone lead to its loss after tooth extractions. This requires hard tissue grafting before implants can be put in place. The aim of this study was to evaluate the stability of hard tissue grafts inserted at the same time as the teeth were extracted. Teeth had to be extracted because of defects in the buccal bone. Extrac...

Covering exposed roots becomes more and more difficult as the gingiva becomes thinner and the vestibule becomes more shallow. Also, the outcome becomes less predictable. In addition, where there is high frenal attachment or muscle pull, such as the mentalis muscle in the mandibular anterior region, secondary retraction of a coronally advanced flap...

The study aimed at investigating the impact of two surface debridement/decontamination (DD) methods on the clinical outcomes of combined surgical treatment of peri-implantitis. Thirty-two patients suffering from advanced peri-implantitis (n=38 combined supra- and intra-bony defects) were treated with flap surgery, granulation tissue removal, and im...

An esthetic implant-supported rehabilitation continues to be a major challenge in patients with a thin periodontium. Ridge preservation and immediate implant placement are intended to preserve the hard tissue volume and prevent preimplant bone loss following tooth extraction. Since these techniques are almost always combined with bone grafting, pri...

Tooth loss in the esthetic zone often results in a defect of the buccal bone. In former days, hard tissue augmentation was done when the wound healing of the hard and soft tissue was completed. Today, we try to regenerate the soft and hard tissue defects minimally invasively at the same time as the extraction by doing a ridge preservation and a soc...

Aktuelle Trends im Bereich der chirurgischen Präparation liegen im differenzierten Einsatz des Lasers und der Anwendung von Ultraschall. Der Einsatz des Lasers beschränkt sich weitgehend auf die Präparation von Weichgewebe sowie die offene und geschlossene Behandlung der Parodontitis und Periimplantitis. Die Anwendung von Ultraschall erfolgt vorneh...

Giessen, Univ., Diss. : 1986.