Volumetric changes of porcine collagen matrix and free gingival grafts for soft-tissue grafting to increase the width of keratinized tissue around dental implants: a retrospective clinical study.

Aim: To compare three-dimensional changes of aporcine derived collagen matrix (CM) and free gingival grafts (FGG) for increasing keratinized tissue (KT) at dental implants over a 24-month follow-up period.

Materials And Methods: This retrospective study enrolled 25 patients exhibiting 41 implants with deficient KT width (i.e.

Influence of Lateral Hard-Tissue Grafting on Peri-Implant Health or Disease: A Cross-Sectional Study.

Aim: To investigate the influence of lateral hard-tissue grafting performed simultaneously to implant placement on peri-implant health or disease.

Materials And Methods: A total of 299 patients exhibiting 897 implants placed either simultaneously with lateral bone grafting using a bovine bone mineral with or without adjunctive native collagen membrane (n = 131/269 patients/implants; LatGr group) or at pristine bone sites without lateral bone grafting (n = 168/628 patients/implants; NoGr group) were enrolled in this cross-sectional analysis. Clinical outcomes (i.

The effect of antiresorptive therapy on the prevalence and severity of oral lichen planus: a retrospective study.

Background: Antiresorptive therapy (AR) disrupts osseous homeostasis and can induce direct irritation over the gastrointestinal mucosa; however, its possible erosive effects on the oral epithelium have not been totally described. Among the most frequent oral erosive lesions, oral lichen planus (OLP) frequently presents as painful mucosal ulcerations, arising from basal membrane inflammatory damage. Thus, the aim of this retrospective study was to describe the association between AR and the incidence of OLP.

Traumatic dental injuries over an 8-year period at a German dental center: a retrospective overview and cross-sectional analysis.

Background/aim: The aim of this study was to analyze a population of patients who had suffered from traumatic dental injuries (TDIs) by using different patient-, trauma- and treatment-related parameters.

Material And Methods: All dental records of patients ≥ 3 years old who had presented at the dental emergency service between Jan 1, 2009 and Dec 31, 2016 for the treatment of dental trauma were analyzed. A total of 2758 patients were invited for a recall examination at the Department for Dental Surgery and Implantology, ZZMK Carolinum, Goethe University Frankfurt, Germany; of these, 269 patients attended their recall appointments.

Three-dimensional changes of a porcine collagen matrix and free gingival grafts for soft tissue augmentation to increase the width of keratinized tissue around dental implants: a randomized controlled clinical study.

Background: Emerging clinical data points to the relevance of the presence of keratinized tissue (KT). Although apically positioned flap/vestibuloplasty along with free gingival graft (FGG) is considered as a standard intervention for augmenting KT, substitute materials appear to be a viable treatment alternative. So far, there is a lack of data investigating the dimensional changes at implant sites treated with soft-tissue substitutes or FGG.

Esthetic and clinical outcomes after immediate placement and restoration: Comparison of two implant systems in the anterior maxilla-A cross-sectional study.

Aim: To assess the esthetic and clinical performance of a novel self-tapping implant system for single-tooth restorations in the esthetic zone after immediate placement and provisionalization.

Materials And Methods: This cross-sectional study included 52 patients contributing a total of 52 immediately placed and restored implants with ≥12 months after functional loading, comparing two different implant systems: Straumann® BLX (Institut Straumann AG, Basel, Switzerland; 25 patients) and Ankylos® (Dentsply Sirona, Hanau, Germany; 27 patients). As the primary outcome measure, peri-implant tissue esthetics were assessed by means of pink esthetics score (PES) rated by three independent clinicians.

Immediate versus delayed implant placement in the esthetic zone: a prospective 3D volumetric assessment of peri-implant tissue stability.

Purpose: To evaluate the volumetric stability of peri-implant soft and hard tissue prospectively, this study compared immediate versus delayed implants placed in the anterior esthetic region.

Methods: This non-randomized controlled clinical study included 25 patients, who received an immediate (type 1) or a delayed (type 4) implant placement for the replacement of a single anterior tooth. The anterior maxillae were intraorally scanned at three timepoints: before surgery (S0), 6 months (S1), and 12 months (S2) after surgery.

Clinical performance of a newly developed two-piece zirconia implant system in the maxilla: A prospective multicentre study.

Purpose: To assess the clinical performance of a two-piece zirconia implant system (PURE Ceramic Implants, Straumann, Basel, Switzerland) in the maxilla after a follow-up period of more than 1 year.

Materials And Methods: A total of 19 patients in three centres received 24 single-tooth implants in the maxilla. The implants were restored after a mean healing period of 7.

Influence of loading and grafting on hard- and soft-tissue healing at immediately placed implants: An experimental study in minipigs.

Aim: To histologically evaluate the influence of (1) loading and (2) grafting on osseointegration and peri-implant soft-tissue healing at immediately placed, self-cutting progressive tissue-level implants (TLX) in a minipig model.

Materials And Methods: TLX implants (n = 56) were immediately placed following the extraction of the mandibular first and second premolars, bilaterally, in a total of n = 14 minipigs. In each animal, the implant sites were allocated to the following four groups: (1) unloaded with simultaneous grafting using a bovine bone mineral; (2) unloaded without grafting; (3) loaded with simultaneous grafting; and (4) loaded without grafting.

Clinical and Esthetic Evaluation Following Immediate Implant Placement and Restoration with Platform- Switched Morse Taper Implants in the Esthetic Zone: A Cross-Sectional Study.

Immediate implant placement with immediate restoration in the esthetic zone is a standardized protocol that aims to satisfy the patient with an immediate, esthetic rehabilitation. This study evaluated clinical and esthetic outcomes following immediate implant placement and provisionalization over a medium- to long-term period. A total of 57 implants in 44 patients were included in the present cross-sectional study, with a follow-up period of 3.

Efficacy of autogenous tooth roots for a combined vertical and horizontal alveolar ridge augmentation and staged implant placement. A prospective controlled clinical study.

Objectives: To assess and compare the efficacy and safety of autogenous tooth roots (TRs) and autogenous bone blocks (ABs) for combined vertical and horizontal alveolar ridge augmentation and two-stage implant placement.

Materials And Methods: A total of 28 patients in need of implant therapy and vertical ridge augmentation were allocated to parallel groups receiving either healthy autogenous tooth roots (e.g.

Lateral alveolar ridge augmentation using an equine-derived collagen-containing bone block: A prospective case series.

Objectives: To assess the clinical performance of an equine-derived collagen-containing bone block (CXBB) for lateral alveolar ridge augmentation and staged implant placement.

Material And Methods: A total of n = 16 patients (16 implants) had received a modified surgical protocol for lateral ridge augmentation using a size-adapted rigidly fixed CXBB and contour augmentation. After 26 weeks of submerged healing, the primary endpoint was defined as the final ridge width (RW26) sufficient to place an adequately dimensioned titanium implant at the respective sites.

The prevalence of peri-implant diseases around subcrestally placed implants: A cross-sectional study.

Objectives: To evaluate the prevalence of peri-implant health, peri-implant mucositis or periimplantitis for subcrestally placed implants (1-3 mm) on the short-, medium- and long term.

Material And Methods: Two hundred patients were enrolled in this cross-sectional study that were treated and screened during regular maintenance visits at one university center. A total of 657 implants were evaluated.

The influence of soft-tissue volume grafting on the maintenance of peri-implant tissue health and stability.

Background: To investigate the influence of soft-tissue volume grafting employing autogenous connective tissue graft (CTG) simultaneous to implant placement on peri-implant tissue health and stability.

Material And Methods: This cross-sectional observational study enrolled 19 patients (n = 29 implants) having dental implants placed with simultaneous soft-tissue volume grafting using CTG (test), and 36 selected controls (n = 55 implants) matched for age and years in function, who underwent conventional implant therapy (i.e.

Prospective study assessing three-dimensional changes of mucosal healing following soft tissue augmentation using free gingival grafts.

Background: The present study aimed to assess the three-dimensional changes following soft tissue augmentation using free gingival grafts (FGG) at implant sites over a 3-month follow-up period.

Methods: This study included 12 patients exhibiting deficient keratinized tissue (KT) width (i.e.

The prevalence of peri-implant disease following immediate implant placement and loading: a cross-sectional analysis after 2 to 10 years.

Background: To evaluate the prevalence of peri-implant disease after immediate implant placement and loading.

Material And Methods: This cross-sectional analysis included a total of 47 patients with 64 implants exhibiting a mean loading time of 2 to 10 years (4.23 ± 1.

Microstructural volumetric analysis of vertical alveolar ridge augmentation using autogenous tooth roots.

Background: To volumetrically assess the bone microstructure following vertical alveolar ridge augmentation using differently conditioned autogenous tooth roots (TR) and second-stage implant placement.

Materials And Methods: The upper premolars were bilaterally extracted in n = 4 beagle dogs and randomly assigned to either autoclavation (TR-A) or no additional treatment (TR-C). Subsequently, TR were used as block grafts for vertical alveolar ridge augmentation in both lower quadrants.

The influence of simultaneous lateral grafting on clinical outcomes following one-stage implant placement: a cross-sectional analysis.

Background: To investigate the influence of lateral bone augmentation procedures performed simultaneously with implant placement on peri-implant health or disease.

Material And Methods: A total of 232 patients showing the same type of a two-piece implant placed either simultaneously with lateral bone grafting using a bovine bone mineral and a native collagen membrane (n = 291 implants; test group) or at pristine bone sites without lateral bone grafting (n = 283 implants; control group) were enrolled in this cross-sectional analysis. Clinical outcomes (i.

Short-term outcomes of lateral extraction socket augmentation using autogenous tooth roots: A prospective observational study.

Objectives: To assess the short-term clinical outcomes of lateral augmentation of deficient extraction sockets and two-stage implant placement using autogenous tooth roots (TR).

Material And Methods: A total of n = 13 patients (13 implants) were available for the analysis. At the time of tooth extraction, each subject had received lateral augmentation using the respective non-retainable but non-infected tooth root where the thickness of the buccal bone was <0.

Discomfort/pain due to periodontal and peri-implant probing with/without platform switching.

Objective: To compare discomfort/pain following periodontal probing around teeth and peri-implant probing around implants with or without platform switching.

Methods: Two dentists recruited and examined 65 patients, each of them exhibiting a dental implant with a contralateral tooth. Only two types of implants were included: one with and one without platform switching.

Short-term outcomes of staged lateral alveolar ridge augmentation using autogenous tooth roots. A prospective controlled clinical study.

Objectives: To assess the short-term clinical outcomes of lateral alveolar ridge augmentation using autogenous tooth roots (TR) and autogenous bone blocks (AB).

Material And Methods: A total of n = 23 patients (23 implants) were available for the analysis. Each subject was allocated to lateral ridge augmentation using either (a) healthy autogenous tooth roots (e.

Histomorphometrical assessment of vertical alveolar ridge augmentation using extracted tooth roots in the canine.

Objectives: To histomorphometrically evaluate the influence of autoclavation on the efficacy of extracted tooth roots (TR) used for vertical alveolar ridge augmentation.

Materials And Methods: Upper premolars were randomly assigned to either autoclavation (TR-A) or an untreated control group (TR-C) and used as block grafts for vertical alveolar ridge augmentation in both lower quadrants (n = 4 beagle dogs). Tissue biopsies were obtained after 15 weeks of submerged healing.

Decision-making in closure of oroantral communication and fistula.

After removal of a dental implant or extraction of a tooth in the upper jaw, the closure of an oroantral fistula (OAF) or oroantral communication (OAC) can be a difficult problem confronting the dentist and surgeon working in the oral and maxillofacial region. Oroantral communication (OAC) acts as a pathological pathway for bacteria and can cause infection of the antrum, which further obstructs the healing process as it is an unnatural communication between the oral cavity and the maxillary sinus. There are different ways to perform the surgical closure of the OAC.

Influence of autoclavation on the efficacy of extracted tooth roots used for vertical alveolar ridge augmentation.

Objectives: To assess the influence of autoclavation on the efficacy of extracted tooth roots (TR) used for vertical alveolar ridge augmentation and two-stage osseointegration.

Material And Methods: Maxillary premolars were randomly assigned to either autoclavation (TR-A) or were left untreated (TR-C) and used as block grafts for vertical alveolar ridge augmentation in both lower quadrants (n = 4 beagle dogs). At 12 weeks, titanium implants were inserted and left to heal for 3 weeks.