Abutment screw loosening is the most common complication in single implant-supported crowns, typically remedied by simply reattaching the restoration, preferably using a new abutment screw. The internal aspect of the implant along with any other components should be decontaminated before reconnection. This clinical report provides information on the appropriate management of the decontamination process, as well as evidence of the foreign material found within the implant body.
View Article and Find Full Text PDFCompend Contin Educ Dent
September 2023
Used to treat implants failing due to peri-implantitis, implantoplasty has traditionally been performed in conjunction with a resective approach or to smooth the portion of the dental implant above the bone to facilitate oral hygiene efforts. This article demonstrates the use of implantoplasty to decontaminate the implant surface both above and below the crest of bone in an attempt to reosseointegrate the failing implant; to the authors' knowledge this is the first time in the literature that implantoplasty was used in this manner and demonstrated potential regenerative efficacy.
View Article and Find Full Text PDFInt J Oral Maxillofac Implants
November 2023
A biologic is a therapeutic agent with biological activity that is administered to achieve an enhanced regenerative or reparative effect. The use of biologics has progressively become a core component of contemporary periodontal practice. However, some questions remain about their safety, indications, and effectiveness in specific clinical scenarios.
View Article and Find Full Text PDFClin Implant Dent Relat Res
December 2022
Aim: This systematic review aimed to investigates the types and incidences of complications following sinus floor elevations (SFE) along with their prevention and management strategies.
Materials And Methods: Electronic database and hand search were conducted to screen the literature published from January 1960 to June 2021. The selected studies had to report well-described SFE techniques, complications during, and post-SFE.
Int J Periodontics Restorative Dent
April 2022
Historically, diagnosing peri-implantitis is done based on whether the disease is present, evaluated using the arbitrary thresholds of probing depths and bone loss. Using this approach as a tool to ascertain meaningful information regarding prevalence and treatment is limited. Efforts have been made to improve upon this, but to date, only one of these classifications has provided a simple method to communicate disease severity based on the amount of bone loss.
View Article and Find Full Text PDFStatement Of Problem: Implant cantilever beam torque-limiting devices are affected by parallax, which may result in measurement read error. The overread or underread of the true target torque value could lead to premature failure of the screw joint of a dental implant.
Purpose: The purpose of this in vitro study was to determine the effect of the operator's viewing angle relative to the cantilever beam and measurement reading scale when the torque-limiting device is actioned toward or away from the operator.
Statement Of Problem: The output torque delivered by a dental implant toggle-style torque wrench is known to be affected by activation rate. The International Organization for Standardization (ISO) established the ISO 6789-1 standard to provide guidance on activation rates relative to desired output torque in the Nm torque range. Whether the ISO 6789-1 standard applies at the relatively lower dental torque ranges is not known, and little information is available on the activation rates that clinicians use and how this may affect output torque.
View Article and Find Full Text PDFInt J Oral Maxillofac Implants
June 2021
Purpose: The purpose of this study was to survey practicing clinicians and determine if differences existed concerning their use of torque-limiting devices (TLDs) and screw-tightening protocols, comparing this with existing universal industry standards.
Materials And Methods: A nine-question survey was administered with 428 dentists providing data for three specific areas: (1) demographic information-TLD ownership, device age, frequency of use, and observations of screw loosening; (2) recognition information-calibration, reading measurements of the TLD, and the meaning of preload; (3) usage information-screw-tightening protocols and effect of speed during actioning of the TLD. Data collection was compared with industry standards for use of hand torque tools including ISO-6789 1,2:2017 and related texts pertaining to screw fastener protocols.
Based on a high level of success, dental implant therapy has become a preferred means of treatment for a wide variety of oral problems related to historic or impending tooth loss. Peri-implantitis is a biologic complication that can threaten the survival of dental implants. Many systematic reviews and meta-analyses that have evaluated the varying treatment options available to manage this problem suggest that dental implants have questionable to poor prognoses when the bone loss becomes moderate to advanced.
View Article and Find Full Text PDFInt J Periodontics Restorative Dent
June 2020
Peri-implantitis is a biologic complication that can affect the survival of a dental implant. Most surgical and nonsurgical treatments have been relatively ineffective even when using targeted antimicrobial approaches. A growing number of reports are documenting the presence of titanium granules and/or cement in the soft tissues surrounding peri-implantitis-affected dental implants.
View Article and Find Full Text PDFThe dental torque limiting device is a tool used to deliver a measured torque to implants and to their associated components. The torque delivery must be accurate and precise, especially when considering screw joints. Similar torque wrenches are used in various industries, and recommendations on calibration are provided by the International Organization for Standardization 6789-2:2017.
View Article and Find Full Text PDFClin Adv Periodontics
December 2020
Introduction: The American Academy of Periodontology convened a Best Evidence Consensus workgroup in August 2019 in Chicago, IL to address whether the conversion of a thin to a thick tissue phenotype through various phenotype modification therapy (PhMT) can positively influence peri-implant health.
Case Series: PhMT was applied to two dental implant cases using subepithelial connective tissue grafting to increase peri-implant keratinized tissue. These cases demonstrated that when PhMT was used in either a reactive or proactive manner, the keratinized tissue improvement can support long-term peri-implant health.
Tightening torques are often specified in implant dentistry, including for surgical procedures, testing implant stability, and attaching prosthetic components when screws are used. The mechanical torque limiting devices (MTLDs) commonly used are typically either a toggle-type or beam-type. The International Organization for Standardization (ISO) 6789 recommends MTLDs should be periodically tested to confirm the validity of their readings, and, where necessary, recalibrated if possible or replaced.
View Article and Find Full Text PDFAbutment screw loosening is still the most common complication reported with implant-supported crowns. One factor that contributes to screw loosening is not achieving the proper torque during the tightening process. Torque application and measurement is usually achieved by using one of the available types of mechanical torque wrench.
View Article and Find Full Text PDFPeri-implant mucositis has been defined as a reversible inflammatory reaction in the soft tissues around a functioning implant with no bone loss. This paper reviews the prevalence, etiology, risk indicators, prevention, and treatment of mucositis. Relying on the literature concerning mucositis, the bacterial etiology is discussed as well as the varying ranges of prevalence, reported to be from 20% to 80% of subjects (13% to 62% of implants) after a minimum of 5 years of implant function.
View Article and Find Full Text PDFCompend Contin Educ Dent
March 2019
Implant stability is a key consideration when determining the point in time a dental implant should be loaded. Often a change in implant stability is observed as healing progresses from initial mechanical stability to biologic stability, ie, osseointegration, during the bone modeling/remodeling process. This change in stability can be objectively measured using resonance frequency analysis (RFA).
View Article and Find Full Text PDFBackground: This retrospective consecutive case series study was performed to determinate the survival rate and implant stability of short (7 mm length) dental implants with an electrowetted hydrophilic surface that were in function from 1 to 7 years.
Methods: A retrospective chart review identified and evaluated 86 consecutively placed 7-mm-long dental implants (ProActive, Neoss Ltd., Harrogate, England) in 75 patients.
Int J Periodontics Restorative Dent
September 2018
This in vitro pilot study was performed to determine whether a treatment algorithm including mechanical debridement, followed by air powder abrasion with glycine, followed by citric acid conditioning with vigorous flushing of the surface with sterile water after each step, is capable of decontaminating an infected implant surface. A total of 14 dental implants that were deemed hopeless due to advanced peri-implantitis were extracted. Of these, 6 implants served as tests and had their exposed surfaces treated with the decontamination protocol, 6 served as untreated controls, and 2 were mechanically treated only, followed by rubbing the surface with sterile saline.
View Article and Find Full Text PDFInt J Periodontics Restorative Dent
September 2018
The aim of this retrospective study was to examine the histories of 100 patients with 170 implants that were consecutively treated and reported in a previous study to identify which patient and implant factors might have affected the outcomes of therapy. Patient factors included history of periodontitis, hypertension, cardiac problems, rheumatoid arthritis, smoking, and penicillin allergy. Implant factors included whether the prosthesis was cemented or screw retained and initial bone loss (≤ 50% or > 50% of implant length).
View Article and Find Full Text PDFCraniofacial growth is an important factor to consider when providing dental implant treatment for adolescents to replace missing teeth. Ongoing longitudinal observation has demonstrated that such tooth replacements may appear intruded over time, because there may be ongoing downward and anterior movement of both the alveolus and the teeth at a rate exceeding that of the dental implant, which acts like an ankylosed unit. This case reports on a 23.
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