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Zahnarztliche Praxis Feb 1979
Topics: Apicoectomy; Humans; Retrograde Obturation
PubMed: 298135
DOI: No ID Found -
British Dental Journal Jan 2017
Topics: Apicoectomy; Endodontists; Humans; Referral and Consultation; Surgery, Oral; Treatment Outcome
PubMed: 28084370
DOI: 10.1038/sj.bdj.2017.2 -
Endodontics & Dental Traumatology Apr 2000Root-end cavities have traditionally been prepared by means of small round or inverted cone burs in a micro-handpiece. Since sonically or ultrasonically driven... (Review)
Review
Root-end cavities have traditionally been prepared by means of small round or inverted cone burs in a micro-handpiece. Since sonically or ultrasonically driven microsurgical retrotips became commercially available in the early 1990s, this new technique of retrograde root canal instrumentation has been established as an essential adjunct in periradicular surgery. At first glance, the most relevant clinical advantages are the enhanced access to root ends in limited working space and the smaller osteotomy required for surgical access because of the various angled designs and small size of the retrotips. However, a number of experimental studies comparing root-end preparations made with microsurgical tips to those made with burs have demonstrated other advantages of this new technique, such as deeper cavities that follow the original path of the root canal more closely. The more centered root-end preparation also lessens the risk of lateral perforation. In addition, the geometry of the retrotip design does not require a beveled root-end resection for surgical access thus decreasing the number of exposed dentinal tubules. A controversial issue of sonic or ultrasonic root-end preparation is the formation of cracks or microfractures, and its implication on healing success. The present paper reviews experimental and clinical studies about the use of microsurgical retrotips in periradicular surgery and discusses many issues raised in previous papers.
Topics: Apicoectomy; Dental High-Speed Equipment; Humans; Microsurgery; Retrograde Obturation; Sonication; Ultrasonics
PubMed: 11202858
DOI: 10.1034/j.1600-9657.2000.016002047.x -
Nederlands Tijdschrift Voor... Nov 2004Failure of root canal therapy is usually due to re-infection of the root canal system. In most of these cases, an endodontic retreatment is indicated. Patients with... (Review)
Review
Failure of root canal therapy is usually due to re-infection of the root canal system. In most of these cases, an endodontic retreatment is indicated. Patients with persisting apical periodontitis frequently are referred to an oral surgeon for apical surgery, although endodontic retreatment would have been possible in a majority of these cases. When endodontic retreatment is not possible or does not resolve the patient's problems, surgical apicoectomy or extraction might be the only possibilities left. Apical surgery is usually performed by an oral sugeon or by a specially trained dentist. In most surgical clinics beveled resection, followed by an preparation and restoration is performed. New developments, such as microscopic sugery, ultrasonic preparation and newly developed restorative materials are described in this article. Since there is a lack of well-designed comparative clinical studies, no definite conclusions can be drawn with regard to the clinical value of these modern techniques.
Topics: Apicoectomy; Humans; Periapical Periodontitis; Reoperation; Root Canal Therapy; Tooth Root; Treatment Failure
PubMed: 15626130
DOI: No ID Found -
Photomedicine and Laser Surgery Mar 2013This retrospective clinical investigation intends to examine the effectiveness of an Er:YAG laser used in conjunction with a dental operation microscope for apicoectomy,... (Comparative Study)
Comparative Study
OBJECTIVE
This retrospective clinical investigation intends to examine the effectiveness of an Er:YAG laser used in conjunction with a dental operation microscope for apicoectomy, in comparison with the traditional surgical procedure.
BACKGROUND DATA
The Er-YAG laser has shown great potential in application to periapical surgery; however, clinical data are rare.
METHODS
To this end, 78 patients who had undergone apicoectomy in a private dental office were selected; 41 patients were treated by the traditional surgical technique for apicoectomy and 37 patients were treated using an Er:YAG laser under microscopic control. The five cardinal symptoms of inflammation were taken as clinical parameters/examination criteria and evaluated after postoperative days 1, 7, and 180, where days 7 and 180 after the operation can be regarded as the customary times for follow-up controls at the private dental office.
RESULTS
Microscopically guided, laser-assisted treatment seems to favor a better healing process overall. After the first postoperative day, redness and swelling of the operation area were significantly reduced (p<0.001 and p=0.0048). Seven days after the operation, all inflammation parameters were statistically significantly lower in the laser-treated group (p<0.05). On day 180, 6 out of 41 patients in the control group still displayed a disturbed function of the treated teeth, whereas none of the patients in the laser group experienced further complaints.
CONCLUSIONS
As a result, it can be ascertained that the use of an Er:YAG laser as an adjuvant tool in periapical surgery, with additional control by an operation microscope, displays significantly better results in terms of postoperative healing, in comparison with the conventional surgical treatment of apicoectomy.
Topics: Apicoectomy; Humans; Lasers, Solid-State; Microscopy; Retrospective Studies; Root Canal Filling Materials; Root Canal Preparation
PubMed: 23421626
DOI: 10.1089/pho.2012.3393 -
Journal of Stomatology, Oral and... Sep 2022Static guided trephine apicoectomy has been developed as a less invasive and more accurate alternative to conventional freehand apicoectomy with drills. Overpenetration...
PURPOSE
Static guided trephine apicoectomy has been developed as a less invasive and more accurate alternative to conventional freehand apicoectomy with drills. Overpenetration is a frequent issue with this procedure, which deteriorates accuracy and raises safety concerns. A safety improvement to address this problem is presented.
MATERIALS AND METHODS
Guided apicoectomies were performed in porcine mandibles with either a conventional bone trephine or a custom-made endo-trephine with built-in depth control. The deviation of the apical endpoint of the trephine from the digital surgical plan was analyzed. Overpenetration frequency was recorded.
RESULTS
Procedures performed with the custom trephine were significantly more accurate both along the x-axis and globally, but no significant difference was found for the y and z axes. Overpenetration frequency was 70% in the conventional trephine group versus 38% in the stop trephine group.
CONCLUSION
The results indicate that the lack of physical depth control can interfere with the accuracy (and safety) of these procedures to a significant extent, as visual cues (such as the depth markings on a conventional trephine) are insufficient to prevent overpenetration. Our results show that custom-made trephines with a built-in stop offer an optimal solution for this problem.
Topics: Animals; Apicoectomy; Cone-Beam Computed Tomography; Humans; Mandible; Microsurgery; Printing, Three-Dimensional; Swine
PubMed: 34601166
DOI: 10.1016/j.jormas.2021.09.014 -
Oral Surgery, Oral Medicine, and Oral... Dec 1951
Topics: Apicoectomy; Humans; Root Canal Therapy
PubMed: 14891185
DOI: 10.1016/0030-4220(51)90156-9 -
International Journal of Computerized... Feb 2023The aim of the present ex vivo study was to examine the accuracy of augmented reality-assisted apicoectomies (AR-A) versus template-guided apicoectomies (TG-A).
AIM
The aim of the present ex vivo study was to examine the accuracy of augmented reality-assisted apicoectomies (AR-A) versus template-guided apicoectomies (TG-A).
MATERIALS AND METHODS
In total, 40 apicoectomies were performed in 10 cadaver pig mandibles. Every pig mandible underwent two AR-A and two TG-A in molar and premolar teeth. A crossed experimental design was applied. AR-A was performed using Microsoft HoloLens 2, and TG-A using SMOP software. Postoperative CBCT scans were superimposed with the presurgical planning data. The deviation between the virtually planned apicoectomy and the surgically performed apicoectomy was measured. The primary (angular deviation [degrees]) and secondary (depth deviation [mm]) outcome parameters were measured.
RESULTS
Overall, 36 out of 40 apicoectomies could be included in the study. Regarding the primary outcome parameter (angular deviation), there was no significant difference between AR-A and TG-A. The mean values were 5.33 degrees (± 2.96 degrees) in the AR-A group, and 5.23 degrees (± 2.48 degrees) in the TG-A group. The secondary outcome parameter (depth deviation) showed no significant difference between the AR-A group of 0.27 mm (± 2.32 mm) and the TG-A group of 0.90 mm (± 1.84 mm). In this crossed experimental design, both techniques overshot the target depth in posterior sites, as opposed to not reaching the target depth in anterior sites (P < 0.001).
CONCLUSION
Augmented reality (AR) technology has the potential to be introduced into apicoectomy surgery in case further development is implemented.
Topics: Animals; Swine; Augmented Reality; Apicoectomy; Software; Mandible; Molar; Surgery, Computer-Assisted
PubMed: 35072426
DOI: 10.3290/j.ijcd.b2599279 -
Compendium of Continuing Education in... Jul 2007The field of endodontics has seen vast improvements in technology and techniques over the past several years. Perhaps the one area of endodontics that has improved the...
The field of endodontics has seen vast improvements in technology and techniques over the past several years. Perhaps the one area of endodontics that has improved the most is the way in which surgery is performed. With the use of state-of-the-art instruments, new and improved materials, and a surgical operating microscope, the gap has narrowed between biological concepts and the ability to achieve consistently successful clinical results. The practice of these techniques is now referred to as endodontic microsurgery.
Topics: Aluminum Compounds; Apicoectomy; Calcium Compounds; Dental Pulp Diseases; Drug Combinations; Humans; Lighting; Microsurgery; Oxides; Periapical Diseases; Retrograde Obturation; Root Canal Filling Materials; Silicates
PubMed: 17687902
DOI: No ID Found -
Oral Surgery, Oral Medicine, and Oral... Sep 1989Sixty-four teeth were treated by means of apicoectomy with retrograde gutta-percha filling with the use of new instruments that we devised. The new instruments consisted...
Sixty-four teeth were treated by means of apicoectomy with retrograde gutta-percha filling with the use of new instruments that we devised. The new instruments consisted of a biangle explorer, angle reamers, and angle files. Operations with this technique showed a success rate of 95.3% (61/64 teeth). We conclude that our technique for apicoectomy with retrograde gutta-percha filling is not only simple in procedure, but also shows excellent results.
Topics: Adolescent; Adult; Apicoectomy; Child; Female; Follow-Up Studies; Gutta-Percha; Humans; Male; Middle Aged; Retrograde Obturation; Zinc Oxide-Eugenol Cement
PubMed: 2771376
DOI: 10.1016/0030-4220(89)90220-x