Recent Surgery Articles |
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Fibrinogen-Induced Regeneration Sealing Technique (F.I.R.S.T.). An Improvement and Modification of Traditional GBR: A Report of Two Cases
Guided bone regeneration is a technique widely known, clinicians know very well indications and
limitations of this technique. One of the principles to achieve bone augmentation and formation resides
in the stability of the blood clot forming under a barrier membrane. The technique proposed in this article
has the goal of providing stabilization to the bone graft by adding fibrin sealant (FS) to the bone graft and
also using the fibrin sealant to attach a bone membrane (cortical lamina) to the recipient site. This simple
modification of the technique of guided bone regeneration is presented in two successful cases.
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Buccal Sliding Palatal Pedicle Flap Technique for Wound Closure After Ridge Augmentation
One standard approach for wound closure after ridge augmentation is coronal flap advancement. Coronal flap advancement results in displacement of the mucogingival junction and reduction of the vestibulum. In the maxilla, a buccal sliding palatal flap can be applied for primary wound closure after ridge augmentation. The dissected part of the palatal connective tissue is left exposed, thus eliminating or reducing the amount of the coronal flap advancement respectively and increasing the amount of keratinized gingiva. In combination with guided soft tissue augmentation, this flap design enables a three-dimensional peri-implant soft tissue augmentation.
Author(s): |
Snježana Pohl, MD, DMD;Maurice Salama, DMD;Pantelis Petrakakis, DDS, DPH |
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A Decade of the Socket-Shield Technique: A Step-by-Step Partial Extraction Therapy Protocol
Ten years have passed since Hürzeler and coworkers
first introduced the socket-shield technique. Much has
developed and evolved with regard to partial extraction
therapy, a collective concept of utilizing the
patient’s own tooth root to preserve the periodontium
and peri-implant tissue. The specifications, steps, instrumentation,
and procedures discussed in this article
are the result of extensive experience in refining the
socket-shield technique as we know it today. A repeatable,
predictable protocol is requisite to providing
tooth replacement in esthetic dentistry. Moreover, a
standardized protocol provides a better framework for
clinicians to report data relating to the technique with
procedural consistency. This article aims to illustrate a
reproducible, step-by-step protocol for the socket-
shield technique at immediate implant placement
and provisionalization for single-rooted teeth.
Author(s): |
Howard Gluckman, BDS, MChD, PhD;Jonathan Du Toit, BChD, Dip Oral Surg, Dipl Implantol, MSc, MChD (OMP), FCD(SA) OMP, PhD;Maurice Salama, DMD;Katalin Nagy, DDS, DSc, PhD;Michel Dard, DDS, MS, PhD |
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Recent General Articles |
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Antimicrobial Effect of a Single Dose of Amoxicillin on the Oral Microbiota
Amoxicillin is commonly used in oral surgery for antimicrobial prophylaxis against surgical-site infection and
bacteremia because of its effect on oral streptococci. The aim of this study was to determine whether amoxicillin reaches
the break-point concentrations in saliva and has any effect on the salivary microbiota, colonizing bacteria on mucosal
membranes and on the gingival crevice after a single dose of amoxicillin. A single dose given as prophylaxis to prevent a surgical-site infection results in a significant reducing effect on
the oral streptococcal microflora in the gingival crevice and may have an impact on bacteria spreading into tissues and the
bacteria of streptococci.
Author(s): |
Cecilia Larsson Wexell, DDS, PhD; Henrik Ryberg, PhD; Wivi-Anne Sjöberg Andersson, DDS; Susanne Blomqvist, BSc; Pieter Colin, PhD; Jan Van Bocxlaer, PhD; Gunnar Dahlén, DDS PhD |
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Effectiveness of a Super-Pulsed CO2 Laser For Removal of Biofilm From Three Different Types of Implant Surfaces: An In Vitro Study
As dental implants become
a routine part of dental practice, so too will the
prevalence of peri-implant diseases. Inherent
to the treatment of peri-implant disease is the
removal of microbial biofilms from the implant
surface. Currently, there is no standardized
protocol for application of any treatment
modality directed at implant surface decontamination.
In this in vitro study, we report
on the effectiveness of a super-pulsed CO2
laser, delivering an
average fluence of 6.3 to 113 J/cm2, to
remove biofilm from three different types of
implant surface topographies.
Biofilms ranged in thickness from
5 to 15 μm. An average fluence of 19 J/cm2
was sufficient to achieve 100% ablation of the
biofilm on hydrophilic sandblasted and acidetched
surface specimens (SA). However, to
achieve 100% ablation of biofilm on HA and
highly crystalline, phosphate enriched titanium
oxide (PTO) surfaced implants required an
average fluence of 38 J/cm2.
Author(s): |
Peter Vitruk, PhD;Charles M. Cobb, DDS, MS, PhD |
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Oral Soft Tissue Laser Ablative and Coagulative Efficiencies Spectra
The key to the success of soft tissue
lasers is their ability to cut and coagulate the
soft tissue at the same time. Present work is
aimed to derive the wavelength-dependent
differences in photo-thermal ablation and
coagulation efficiencies for oral soft tissue
pulsed dental Near-IR Diode, Mid-IR Erbium
and IR CO2 lasers. Even though the soft tissue photothermal
ablation has been extensively
studied, there remains a discrepancy
between (a) the widely proliferated notion
about efficient Near-IR 800-1,100 nm laser
ablation of the oral soft tissue, and (b)
studies reporting the inefficient soft tissue
Near-IR absorption/ablation. Indeed, the notions about “the key to
the usefulness of the Nd:YAG is that this
wavelength is highly absorbed in oral soft
tissue”, and “all currently available dental
laser instruments and their emission wavelengths
have indications for use for incising,
excising... oral soft tissue surgery”,
contradict an observation illustrated here...
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Recent Restorative Articles |
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When Esthetic Becomes Challenging
This case report shows the successful change of a young lady smile, by following standard dental esthetic guide lines.
With careful, detailed examination and diagnosis, we could reach our goal toward providing a high esthetic smile
change.
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Treating Two Adjacent Missing Teeth in the Esthetic Zone - Part 1: The Pink Hybrid Restoration & the Unilateral Versus Bilateral Defect Concept
This article, the first of a planned three-part series, outlines a new surgical & prosthetic approach for treating cases involving two missing adjacent teeth in the esthetic zone. These type of cases, particularly when combined with a three-dimensional ridge deficiency, represent one of esthetic dentistry's most challenging dilemmas. A Clear understanding of the unilateral and bilateral defect concept is necessary to properly evaluate each particular case, understand surgical limitations, perform a better risk assessment, establish an esthetic prognosis, develop the best clinical-laboratory strategy, and adjust patients' expectations. While not recommended for every case, represents a useful, economical, and predictable alternative that decreases the umber and complexity of interventions.
Author(s): |
Christian Coachman, DDS, CDT;Maurice Salama, DMD;Eric Van Dooren, DDS; Eduardo Mahn, DDS, DMD, PhD |
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The “Scalloped Guide”: A Proof-of-Concept Technique for a Digitally Streamlined, Pink-Free Full-Arch Implant Protocol
Inadequate restorative space can result in mechanical, biologic, and esthetic
complications with full-arch fixed implant-supported prosthetics. As such,
clinicians often reduce bone to create clearance. The aim of this paper was
to present a protocol using stacking computer-aided design/computerassisted
manufacturing (CAD/CAM) guides to minimize and accurately
obtain the desired bone reduction, immediately place prosthetically guided
implants, and load a provisional that replicates predetermined tissue contour.
This protocol can help clinicians minimize bone reduction and place the
implants in an ideal position that allows them to emerge from the soft tissue
interface with a natural, pink-free zirconia fixed dental prostheses.
Author(s): |
Maurice Salama, DMD;Prof. Dr. Alessandro Pozzi;Wendy AuClair-Clark, DDS, MS;Marko Tadros, DMD;Lars Hansson, CDT, FICOI;Pinhas Adar, MDT, CDT |
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Recent Orthodontics Articles |
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Decision Making for Soft and Hard Tissue Augmentation in Surgically Facilitated Orthodontics
The purpose of this article is to present a decision-making algorithm for soft and hard tissue augmentation in surgically facilitated orthodontics (SFOT). In cases where there is adequate hard and soft tissue envelope, selective corticotomies may be adequate.
In cases, where the existing hard and soft tissue anatomy is inadequate, hard and soft tissue augmentation is recommended. Also, hard and soft tissue augmentation is recommended to avoid teeth extractions during orthodontics.
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Manejo Integral de Maloclusion Clase III en Adulto, con Requerimientos Periodontales y Protesicos; Reporte de un caso clinico
En nuestra clinica observamos un aumento de pacientes adultos con problemas esqueletales, compromiso periodontal y necesidades protesicas. Debemos recurrir a la interconsulta con el periodoncista, protesista y cirujano maxilofacial, para la correccion del caso, prestando especial atencion al componente dentario, esqueletal y los tejidos blandos faciales del paciente. La cirugia ortognatica, que generalmente la realizamos luego de una preparacion ortodoncica, permite corregir discrepancias en el adulto y restaurar la funcion y estetica en los tres planos del espacio. Realizada la correccion oclusal, procedemos a sustituir dientes ausentes, mediante implantes y protesis fijas. El Periodoncista, mantiene un control constante de la salud de los tejidos de soporte, durante todas las fases de la terapia multidisciplinaria.
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Sequencing of Periodontal Procedures and Orthodontic Treatment
Severe cases of periodontal disease often require periodontal surgery and realignment of teeth. Surgical techniques have been developed that attempt to minimize post-surgical gingival recession and compromise the interdental papillae. A case report is presented in which reversal and correction of a deteriorating maxillary frontal dentition were effectively achieved through combined use of periodontal and orthodontic principles. The treatment plan included the control of periodontal inflammation, restoration of lost attachment apparatus, realignment of anterior dentition, stabilization of occlusion, and minor periodontal plastic surgery. The anticipated loss of a maxillary lateral incisor was avoided. Restoration of a pleasant smile with nicely aligned teeth and esthetic gingival contours was achieved. The correct sequencing of the procedures involved was considered a key factor for the long-term esthetic outcome.
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