Search PubMed⌕ Search

Biomedical subjects

A P Saadoun

Publications and source records attributed to A P Saadoun.

At least 19 recordsLinked to original sources
PubMed1997

Treatment classifications and sequencing for postextraction implant therapy: a review.

Dental implantology has become an acceptable and effective treatment modality for totally and partially edentate alveolar arches. When teeth are extracted due to pathology or trauma, bone and soft tissue resorption often occurs. Either an immediate implant placement must be performed or a more traditional treatment plan must be determined; teeth for extraction or incorporation into the overall treatment scheme must also be selected. Selection of the implant site must reflect the mesiodistal, buccolingual, and apicocoronal dimensions. The responsibility of the implant team is to establish a correct diagnosis, evaluate clinical parameters, and design a comprehensive treatment plan, selecting the optimal time for implant placement. The learning objective of this article is to review three classifications of extraction sites and the time sequences of surgical protocols to implant placement following extraction.

Dental Implantation, Endosseous↗
PubMed1996

A single-step GTR treatment for gingival recession with a bioresorbable membrane: a case report.

Creating a single-step surgical treatment for coverage of gingival recession has long been the objective in the development of guided tissue regeneration. A single-step procedure would avoid the trauma of a second surgery and eliminate the limitations associated with soft tissue grafts and nonresorbable barriers. It would also ensure the predictable integration of the bioresorbable membrane in the periodontal tissue and the clinical repair of gingival recession. The learning objective of this article is to present the clinical application of a bioresorbable matrix along with the indications and advantages of the procedure. Three case reports are used to illustrate the clinical technique.

Biodegradation, Environmental↗
PubMed1996

An 8-year compilation of clinical results obtained with Steri-Oss endosseous implants.

This 8-year study shows an increased success rate for Steri-Oss' osseointegrated implants in full, partial, and single-tooth edentation, compared to previous 5- and 6-year studies. A total of 1,499 implants placed in 389 women and 216 men had an average success rate of 96.1%. Of the 716 implants placed in the maxilla, 697 were exposed and only 31 failed-a success rate of 95.6%. Of 783 placed in the mandible, 750 were exposed and 25 failed-a success rate of 96.7%. Performance comparisons of Steri-Oss titanium threaded, hydroxyapatite-coated, cylindrical implants and titanium plasma-sprayed cylindrical implants showed, as in previous reports, a higher success rate for the coated and sprayed implants, especially for short implants placed in soft maxillary bone.

Adolescent↗
PubMed1995

Periimplant tissue considerations for optimal implant results.

A healthy soft tissue is one of the prerequisites for long-term success in implantology. The periimplant tissue health must be either preserved during the surgical procedure or reinstated. This article presents a surgical technique that is less traumatic in its approach and can be used for single or multiple implant procedures. The learning objective of this article is to review this surgical technique for the clinician. The flap design is discussed along with the primary and subsequent incisions during the first stage surgery. The need for preservation of the interdental tissues is outlined to limit excessive bleeding, necrosis of the flap, and to provide anatomic reference for implant placement. Emergence profile and placement of healing abutments during the second stage surgery are reviewed along with the condition of the periimplant tissues, which is one of the key factors for long-term success.

Dental Abutments↗
PubMed1995

Single tooth implant restoration: surgical management for aesthetic results.

Correct implant positioning and appropriate preparation of hard and soft tissues are prerequisites in creating an optimal emergence profile, aesthetics, function, and periodontal health. The use of a healing abutment and the following maturation of soft periimplant tissue develop a subgingival dimension that allows an emergence profile of the final restoration consistent with the size of the adjacent teeth and the tooth to be replicated. This article reviews the determinant factors at first-stage surgery, second-stage surgery, and at the prosthetic phase.

Dental Abutments↗
PubMed1994

Single tooth implant--management for success.

Implant positioning in a mesio-distal, bucco-lingual, and apical-occlusal direction is a prerequisite in developing a good emergence profile and creating optimum aesthetics. The use of a healing abutment and the following healing and maturation of soft periimplant tissue develop a subgingival dimension that allows an emergence profile of the final restoration that is consistent with the size of the tooth to be replaced and the adjacent teeth. The learning objective of this article is to review and update the knowledge of single tooth implants and their management.

Dental Abutments↗
PubMed1994

[Keys to success in implant osseointegration].

The potential utilization of osseointegrated implants should be considered in every treatment planning along with the knowledge of specialists-periodontists, implantologists, and prosthodontists. Prosthetic objectives of function, aesthetics, and maintenance should guide the implant procedure. The purpose of this article is to emphasize how periodontal procedures enhance the cosmetic result and ensure a successful long-term restoration. The search for the best position and orientation of the implant in the bone is guided by the prosthetic phase. Periodontal treatment or extraction of the residual teeth is performed before any placement of implants. Absence of infection and adequate apical bone are necessary to insure primary stabilization. Graft and membrane procedures are done prior to or simultaneously with implant placement. When placed immediately upon extraction, the long axis of the implant should line up with the incisal edge of the adjacent teeth. The compass technique can be performed when the opposite arch of the implantation is edentulous or partially edentulous. The healing abutment serves as a matrix for the gingiva to heal and must replicate the cervical diameter of the tooth. The 6-year results of a previous 5-year study have reconfirmed the results: Quality of bone is the determining factor in success rates; the deeper the bone, the lower the failure rate; a failure rate is most likely to take place during the first year after placement; a higher success rate is found in the mandible; and a higher success rate is found with HA-coated implants.

Alveolar Process↗
PubMed1993

Microbial infections and occlusal overload: causes of failure in osseointegrated implants.

Microbial infections and occlusal overload are the two primary causes of failure in osseointegrated implants. This paper reviews the roles of pathogenic bacteria and occlusal overload, summarizes the types of microbes, outlines the diagnosis, and discusses how these conditions may be avoided and/or corrected. The learning objective of this article is an enhanced and updated understanding of the etiology, prevention, and correction of these two conditions.

Bite Force↗
PubMed1992

Implant positioning for periodontal, functional, and aesthetic results.

Implant positioning requires the adherence to a very precise protocol in order to achieve the best periodontal, functional, and aesthetic results. In this article, the authors discuss the step-by-step procedure, including pre-implant study, transfer techniques, implant positioning, gingiva grafts, and post-implant hygiene.

Dental Implantation, Endosseous↗
PubMed1992

Clinical results and guidelines on Steri-Oss endosseous implants.

A statistical study of the Steri-Oss implant system, concerning 673 implants placed in 280 patients in the course of a 5-year period, allows a therapeutic proposal to be made that will optimize the success rate of osseointegration. The study revealed indications specific to each type of implant, according to the depth and density of available bone. The use of titanium screws is recommended whenever bone quality is type I. In all other cases, where the density of bone decreases and approaches type IV, especially in the posterior maxilla, cylindrical hydroxyapatite-coated implants are recommended.

Adolescent↗
PubMed1990

[Immediate placement of an implant after extraction: indications and surgical requirements].

Following the extraction of a tooth, a 3 to 6 months period of healing is generally necessary before a screwed or impacted titanium implant can be placed. After what, another 3 to 6 months period is necessary before it is possible to expose the implant and put it to function. Nonetheless, in some clinical situations, and under certain surgical conditions, it has become apparent that the immediate positioning of an implant after extraction is currently possible and even recommended, thus ensuring an aesthetic and psychological advantage for the patient.

Adult↗
PubMed1990

[Periodontal requirements in osseointegrated and biointegrated implantology].

Osseo or bio-integrated implantology has become the turning point in modern dentistry and every decision regarding treatment planning should take into consideration the possibility of implant, and combine the knowledge of specialists such as periodontists, implantologists and prosthodontists. The psychological, medical and local evaluation will decide about the choice of the right patient for implant in order to resolve a unit, partial or full edentation. The periodontal therapeutic of the residual teeth will be realized before any insertion of implants and will focus more on elimination of the periodontal diseases on teeth that should be maintained, that on the maintenance on the arches of teeth with poor prognosis. The early extraction of these teeth and their immediate replacement by implants are recommended on certain conditions. The two step procedure in surgical implantology should respect the biological principles in order to obtain and maintain the osseo or bio-integration. The objectives of the post-implantology periodontal treatment will not be limited only to the elimination of the pocket around the implant, but will also create an optimal environment of keratinized attached gingiva around the collar of the implant, necessary for functional and esthetic purposes. The prosthodontic treatment on implants will be conducted with care and according to the perio-occluso prosthetic principles. It is finally essential to preserve the gingival health around the implant and to prevent a gingivitis to become a peri-implantitis, by a regular maintenance and evaluation.

Dental Implantation, Endosseous↗