Zygomatic Implants in Implant Dentistry

2021 ◽  
pp. 245-251
Author(s):  
Justin Bonner
Keyword(s):  
Zygomatic Implants ◽  
Implant Dentistry

A mock surgery laboratory experience in implant dentistry

1989 ◽  
Vol 53 (8) ◽  
pp. 495-495
Author(s):  
GR Huebner ◽  
RL Norman ◽  
JS Mattson
Keyword(s):  
Laboratory Experience ◽  
Implant Dentistry

An In Vitro Analysis of Sodium Hypochlorite Decontamination for the Reuse of Implant Healing Abutments

2020 ◽  
Author(s):  
Ahmad Almehmadi
Keyword(s):  
Sodium Hypochlorite ◽  
Bacterial Culture ◽  
Brain Heart Infusion ◽  
In Vitro Study ◽  
Vitro Study ◽  
Sem Images ◽  
Streptococcus Sanguis ◽  
Implant Dentistry ◽  
Vitro Analysis

Abstract The re-use of healing abutments (HAs) has become common practice in implant dentistry for economic concerns and the aim of this in-vitro study was to assess the effect of sodium hypochlorite (NaOCl) in decontamination of HAs. 122 HAs (Used and sterilized n=107; New n=15) were procured from 3 centers, of which 3 samples were discarded due to perforation in sterilization pouch.  For sterility assessment, the used HAs (n=80) were cultured in Brain Heart Infusion Broth (BHI) and Potato Dextrose Agar (PDA), bacterial isolates were identified in 7 samples. Also, 24 used HAs were stained with Phloxine B, photographed and compared to new HAs (n=5). Scanning electron microscope (SEM) assessed the differences between the two sets of HAs, following which the 7 contaminated HAs along with 24 used HAs from staining experiment (Total=31) were subsequently treated with sodium hypochlorite (NaOCl) and SEM images were observed. About 8.75% of HAs tested positive in bacterial culture; Streptococcus sanguis, Dermabacter hominis, Staphylococcus haemolyticus, and Aspergillus species were isolated. Phloxine B staining was positive for used and sterilized HAs when compared to controls. The SEM images revealed deposits in the used HAs and although treatment with NaOCl eliminated the contamination of cultured HAs, the SEM showed visible debris in the HA thread region. This in-vitro study concluded that SEM images showed debris in used HAs at screw-hole and thread regions even though they tested negative in bacterial culture. The treatment with NaOCl of used HAs showed no bacterial contamination but the debris was observed in SEM images. Future studies on the chemical composition, biological implications, and clinical influence is warranted before considering the reuse of HAs.

REGENERAÇÃO ÓSSEA GUIADA DE ALVÉOLOS DE EXTRAÇÃO DENTÁRIO- UMA REVISÃO

2016 ◽  
Vol 1 (45) ◽  
Author(s):  
Bruno Pires Miranda
Keyword(s):  
Bone Regeneration ◽  
Tooth Extraction ◽  
Oral Surgery ◽  
Guided Bone Regeneration ◽  
The Body ◽  
Synthetic Material ◽  
Dynamic Changes ◽  
Tooth Socket ◽  
Ability To Regenerate ◽  
Implant Dentistry

Resumo O osso é um tecido conjuntivo especializado, vascularizado e dinâmico que se modifica ao longo do organismo. Quando lesado, possui uma capacidade única de regeneração e reparação sem a presença de cicatrizes, mas em algumas situações devido tamanho do defeito ósseo não se regenera por completo. Assim, se faz necessária a realização de procedimentos de regeneração óssea guiada. Para isso, o implantodontista deve conhecer as bases biológicas da regeneração óssea guiada alveolar e suas indicações. Nesta revisão foram abordadas indicações, vantagens e tipos de biomateriais utilizados para preenchimento do alvéolo dentário imediatamente após a extração dentária sempre que o objetivo for à reabilitação através da instalação de implantes. Mesmo este, biomateriais, apresentando inúmeras qualidades, estudos ainda devem ser feitos a fim de obter a cada dia, um material sintético compatível com o tecido ósseo perdido em quantidades adequadas sem necessitar de cirurgias extra-bucais.ABSTRACT Bone is a specialized vascularized connective tissue that dynamic changes throughout the body. When injured, it has a unique ability to regenerate and repair without the presence of scars, but in some situations due to size of the bone defect does not regenerate completely. Thus, it is necessary to perform guided bone regeneration procedures. For this, the implant dentistry must know the biological bases of alveolar guided bone regeneration and its indications. In this review were addressed indications, advantages and types of biomaterials used for filling the tooth socket immediately after the tooth extraction whenever the goal is rehabilitation through implants installation. Even this, biomaterials, having several qualities, further studies must be done to obtain each day, a synthetic material compatible with the bone tissue lost in proper amounts without the need of extra-oral surgery.

scholarly journals Accuracy of digital planning in zygomatic implants

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
B. Xing Gao ◽  
O. Iglesias-Velázquez ◽  
F. G.F. Tresguerres ◽  
A. Rodríguez González Cortes ◽  
I. F. Tresguerres ◽  
...  
Keyword(s):  
Surgical Planning ◽  
Angular Deviation ◽  
Surgical Experience ◽  
Proper Position ◽  
Zygomatic Implants ◽  
Digital Planning ◽  
Key Factor ◽  
Implant Length ◽  
Zygomatic Implant ◽  
Maxillary Atrophy

Abstract Background Zygomatic implants have been described as a therapeutic alternative for patients with severe maxillary atrophy in order to avoid bone augmentation procedures. Taking that into account, in these treatments, the key factor is the position of the implant, the virtual surgical planning (VSP) is widespread among most clinicians before surgery on the patient. However, there are no studies which evaluate the clinical relevance of these VSP. The aim of this study is to determine whether digital planning on zygomatic implants has any influence on the implant dimensions and position, even when performing conventional surgery afterwards. Results Fourteen zygomatic implants were placed in four patients. Pre-operative and post-operative helicoidal computed tomography were performed to each patient to allow the comparison between the digital planning and the final position of implants. Tridimensional deviation (TD), mesio-distal deviation (MDD), bucco-palatine deviation (BPD), and apico-coronal deviation (ACD) were evaluated as well as angular deviation (AD). Significative differences in apical TD were observed with a mean of 6.114 ± 4.28 mm (p < 0.05). Regarding implant position, only implants placed in the area of the first right molar reported significant differences (p < 0.05) for ACD. Also, implant length larger than 45 mm showed BPD significative differences (p < 0.05). Conclusions Zygomatic implant surgery is a complex surgical procedure, and although VSP is a useful tool which helps the clinician determine the number and the length of zygomatic implants as well as its proper position, surgical experience is still mandatory.

scholarly journals A Radiographic and Clinical Comparison of Immediate vs. Early Loading (4 Weeks) of Implants with a New Thermo-Chemically Treated Surface: A Randomized Clinical Trial

2021 ◽  
Vol 18 (3) ◽  
pp. 1223
Author(s):  
Matteo Albertini ◽  
Federico Herrero-Climent ◽  
Carmen María Díaz-Castro ◽  
Jose Nart ◽  
Ana Fernández-Palacín ◽  
...  
Keyword(s):  
Clinical Data ◽  
Patient Reported Outcome Measures ◽  
Patient Reported Outcome ◽  
Early Loading ◽  
Patient Reported ◽  
Bone Level ◽  
Marginal Bone Level ◽  
Implant Dentistry ◽  
Edentulous Patients ◽  
Group B

Background: Implant dentistry has evolved over time, resulting in better treatment outcomes for both patients and clinicians. The aim of this trial was to test whether the immediate loading of implants with a platform-switching design influences the marginal bone level, compared to four-week loading, after one year of follow-up. Moreover, a comparison of clinical data regarding implant survival, implant stability, and patient-reported outcome measures (PROMs) was conducted. Methods: Klockner® VEGA® implants with a ContacTi® surface were placed in partially edentulous patients in the posterior areas. Group A received an immediately loaded prosthesis (one week) and Group B received an early-loaded prosthesis (four weeks). All abutments were placed at the time of surgery. Radiographic and clinical data were recorded. Results: Twenty-one patients were treated (35 implants). No implants were lost during the study. The final marginal bone level did not show differences between groups. The bone loss at 12 months at the implant level was 0.00 mm for both groups (median). The final implant quotient stability (ISQ) values did not differ between groups (median 73 and 70.25), nor did the other clinical parameters or PROMs. Conclusions: The results suggest that neither of the loading protocols with the implants used influenced the marginal bone level—not the osseointegration rate, clinical conditions, or PROMs.

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