scholarly journals The maxillary molar endodontic access opening: A microscope-based approach

2016 ◽  
Vol 10 (03) ◽  
pp. 439-446 ◽  
Author(s):  
John Sami Mamoun
Keyword(s):  
Root Canal ◽  
Microscope Level ◽  
Operating Microscope ◽  
Pulp Chamber ◽  
Anatomical Structures ◽  
Maxillary Molars ◽  
Straight Line ◽  
Maxillary Molar ◽  
Pulp Stones

ABSTRACTThis article reviews the basic clinical techniques of performing a maxillary molar endodontic access opening, starting from the initial access opening into the pulp chamber, to the point where a size #10 file has been advanced to the apices of all three or four (or more) canals. The article explains how the use of the dental surgical operating microscope or microscope-level loupes magnification of ×6–8 or greater, combined with head-mounted or coaxial illumination, improve the ability of a dentist to identify microscopic root canal orifices, which facilitates the efficient creation of conservative access openings with adequate straight-line access in maxillary molars. Magnified photos illustrate various microscopic anatomical structures or landmarks of the initial access opening. Techniques are explored for implementing an access opening for teeth with vital versus necrotic pulpal tissues. The article also explores the use of piezoelectric or ultrasonic instruments for revealing root canal orifices and for removing pulp stones or calcified pulpal tissue inside the pulp chamber.

Observation of the Pulp Chamber of Maxillary First Premolars: A Micro-computed Tomographic Study

2020 ◽  
Vol 16 (3) ◽  
pp. 224-230
Author(s):  
Gozde Serindere ◽  
Ceren Aktuna Belgin ◽  
Kaan Orhan
Keyword(s):  
Root Canal ◽  
Age Groups ◽  
Slice Thickness ◽  
Micro Ct ◽  
Micro Computed Tomography ◽  
Pulp Chamber ◽  
Anatomical Structures ◽  
Computed Tomographic ◽  
The Mean ◽  
Chamber Floor

Background: There are a few studies about the evaluation of maxillary first premolars internal structure with micro-computed tomography (micro-CT). The aim of this study was to assess morphological features of the pulp chamber in maxillary first premolar teeth using micro- CT. Methods: Extracted 15 maxillary first premolar teeth were selected from the patients who were in different age groups. The distance between the pulp orifices, the diameter of the pulp and the width of the pulp chamber floor were measured on the micro-CT images with the slice thickness of 13.6 µm. The number of root canal orifices and the presence of isthmus were evaluated. Results: The mean diameter of orifices was 0.73 mm on the buccal side while it was 0.61 mm on palatinal side. The mean distance between pulp orifices was 2.84 mm. The mean angle between pulp orifices was -21.53°. The mean height of pulp orifices on the buccal side was 4.32 mm while the mean height of pulp orifices on the palatinal side was 3.56 mm. The most observed shape of root canal orifices was flattened ribbon. No isthmus was found in specimens. Conclusion: Minor anatomical structures can be evaluated in more detail with micro-CT. The observation of the pulp cavity was analyzed using micro-CT.

scholarly journals Lower First Permanent Molar with an Additional Root Diagnosis and Management

2019 ◽  
Vol 2019 ◽  
pp. 1-4
Author(s):  
Abdullah Mahmoud Riyahi
Keyword(s):  
Early Diagnosis ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Three Dimensional ◽  
Operating Microscope ◽  
High Quality ◽  
New Techniques ◽  
Permanent Molar ◽  
Straight Line ◽  
Warm Vertical Compaction

Three rooted lower first permanent molar represents one of the main anatomical variants which is a treatment challenge of clinicians. This study is aimed at presenting a case of a lower first molar with an additional root that was diagnosed and managed successfully using new techniques in endodontics. Tooth #46 was diagnosed as a necrotic pulp with symptomatic apical periodontitis. Different angle radiographs were obtained, and they clearly showed three roots. The procedure was completed under magnification and illumination using an operating microscope. The access cavity was modified to achieve straight line access for all the canals. Careful step-by-step instrumentation was performed using flexible NiTi rotary files. The canals were irrigated using 6% sodium hypochlorite. Afterwards, three-dimensional obturation was completed using warm vertical compaction. Knowledge of the anatomy and an early diagnosis are required to achieve high-quality root canal treatment.

scholarly journals Pulp Stone—An Endodontic Challenge: Successful Retrieval of Exceptionally Long Pulp Stones measuring 14 and 9.5 mm from the Palatal Roots of Maxillary Molars

2012 ◽  
Vol 13 (5) ◽  
pp. 719-722 ◽  
Author(s):  
Anand Patil ◽  
Lalita G Nanjannawar ◽  
Girish S Nanjannawar ◽  
Hemanth Vagarali ◽  
Bharath Prathasarathy
Keyword(s):  
Case Report ◽  
Synergistic Effect ◽  
Sodium Hypochlorite ◽  
Root Canal ◽  
Canal System ◽  
Maxillary Molars ◽  
Root Canal System ◽  
Successful Retrieval ◽  
Pulp Stones

ABSTRACT Pulp stones are nodular, calcified masses commonly appearing in the coronal pulp and occasionally extending in radicular pulp. Retrieval of pulp stones remains a challenge for the endodontist as complete cleaning and shaping of root canal system is the bases for successful endodontic therapy. The aim of this case report is to show the retrieval of long pulp stones measuring 14 and 9.5 mm by utilizing synergistic effect of ultrasonics and sodium hypochlorite from the palatal roots of maxillary molars. Such case has not been reported in the literature so far. How to cite this article Nanjannawar GS, Vagarali H, Nanjannawar LG, Prathasarathy B, Patil A, Bhandi S. Pulp Stone—An Endodontic Challenge: Successful Retrieval of Exceptionally Long Pulp Stones measuring 14 and 9.5 mm from the Palatal Roots of Maxillary Molars. J Contemp Dent Pract 2012;13(5):719-722.

scholarly journals Fracture Incidence of Kedo-S Square Pediatric Rotary Files: A Prospective Clinical Study

2021 ◽  
Author(s):  
Lakshimi Lakshmanan ◽  
Ganesh Jeevanandan ◽  
Prabhadevi C Maganur ◽  
Satish Vishwanathaiah
Keyword(s):  
Clinical Study ◽  
Root Canal ◽  
Prospective Clinical Study ◽  
Fracture Rate ◽  
Root Canals ◽  
Maxillary Molars ◽  
Standardized Protocol ◽  
Maxillary Molar ◽  
Group A ◽  
Primary Focus

Abstract Objective The primary focus of this clinical study was to analyze the probability of occurrence of instrument fracture after root canal preparation of primary molars with the help of Kedo-S Square pediatric rotary file. Materials and Methods Three experienced specialists treated 100 primary maxillary and mandibular molars (335 root canals) using a standardized protocol over 2 months. Biomechanical preparations were carried out using Kedo-S Square file, as per the suggestions given by the manufacturer. Every instrument in Group A helped handle three clinical cases, while for groups B, C and D, they helped in handling 5, 9, and 12 cases, respectively. Making use of an operational microscope, the rotary files, after being pulled out from the canal, were observed. The values were tabulated, and descriptive statistics were performed. Results There were two fractures (2%), of which 1 occurred in group C in the apical 1/3rd of distobuccal canal of maxillary molar, and the other occurred in group D in the apical 1/3rd of mesiobuccal canal of maxillary molar. Conclusions The fracture rate of Kedo-S Square rotary file is quite low. It is primarily in the buccal canals of the maxillary molars and the apical third of the root canal that the instrument has a greater probability of separation.

ENDODONTIC MANAGEMENT OF SIX CANALS IN MANDIBULAR FIRST MOLAR : A CASE REPORT.

2021 ◽  
pp. 10-12
Author(s):  
Monika Rawat ◽  
Kamlendra K Roy ◽  
Anika Mittal ◽  
Aditi Dhaundiyal ◽  
Beenish Parvez ◽  
...  
Keyword(s):  
Case Report ◽  
Case Studies ◽  
Root Canal ◽  
Endodontic Treatment ◽  
Operating Microscope ◽  
Pulp Chamber ◽  
Numerous Case ◽  
Canal Systems ◽  
Uncommon Case ◽  
Mandibular First Molar

This case report presented here shows the endodontic treatment of an uncommon case of mandibular rst molar with six canals . Even though such a nding is clinically uncommon but numerous case studies have been reported. Therefore, a thorough knowledge of the anatomy of root canal systems, the variations, correct assessment of the pulp chamber oor, use of operating microscope, taking proper radiographs plays a major role in management of such cases.

scholarly journals A Rare Root Canal Configuration of Maxillary Second Molar: A Case Report

2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Gautam P. Badole ◽  
Rakesh N. Bahadure ◽  
M. M. Warhadpande ◽  
Rajesh Kubde
Keyword(s):  
Root Canal ◽  
Normal Anatomy ◽  
Canal System ◽  
Second Molar ◽  
Root Canals ◽  
Maxillary Molars ◽  
Maxillary Molar ◽  
Root Canal Morphology ◽  
Root Canal System ◽  
Canal Morphology

A thorough knowledge of root canal morphology is a prerequisite for the endodontic therapy. The maxillary molars, especially the second molars, have the most complicated root canal system in permanent dentition. There are many variations in canal number and configuration in maxillary molars. Treatment may be unsuccessful because the dentist may fail to recognize the unusual canal configuration. The present paper describes a case of a right maxillary second molar with a canal configuration rarely reported in the literature. The tooth had four roots with four root canals, two individual palatal roots (mesiopalatal and distopalatal) with their own separate canals. The mesiobuccal and distobuccal root had normal anatomy. This paper may intensify the complexity of maxillary molar variation and is intended to reinforce clinician’s awareness of the rare morphology of root canals.

Retrieval of fractured Endodontic Instrument under dental operating microscope using ultrasonic tips : A Case Report

2020 ◽  
Vol 11 (3) ◽  
pp. 3316-3321
Author(s):  
Samrudhi Khatod ◽  
Anuja Ikhar ◽  
Pradnya Nikhade ◽  
Manoj chandak
Keyword(s):  
Case Report ◽  
Root Canal ◽  
Fracture Resistance ◽  
Root Canal Treatment ◽  
Operating Microscope ◽  
Severe Loss ◽  
Mechanical Procedure ◽  
Root Dentin ◽  
Fracture Level

A Patient came with the complaint of pain in the lower right back region of the jaw. Root canal treatment was planned. While preparing for the bio-mechanical procedure, the Hand pro taper fractured in the apical third. Iatrogenic occurred as a result of the fracture of the endodontic instrument. Retrieval of the fractured instrument was planned to complete the cleaning and shaping of the canal. The removal of the fractured instrument was planned to be done under the Dental Operating Microscope. The use of an operating microscope enhanced the illumination and the magnification of the instrument. This illumination and magnification helped in the precision of removal. The ultrasonic tip enabled to reach of the fractured instrument in the canal and loosen the dentin around the fractured instrument. It allowed easy retrieval of the fractured instrument. During the retrieval procedure, the fractured instrument was bypassed before the use of the ultrasonic tip. After the removal of the fractured instrument, cleaning and shaping were completed, followed by obturation, definitive restoration, and prosthesis. As the removal of the fractured instrument enabled complete cleaning and shaping, it improved the prognosis of the case. When the endodontic instrument gets fractured, it should be analyzed over the radiograph to assess the fracture level, the anatomy of the root canal, size of the fractured instrument, check accessibility, stage of fracture, etc. If all the above criteria are met with the removal of the instrument only then, replacement should be tried. Otherwise, it may lead to a severe loss of root dentin, decreasing fracture resistance of the root.

scholarly journals Efficiency of the skeletonized Pendulum K appliance for non-compliance maxillary molar distalization

2021 ◽  
Author(s):  
Gero Stefan Michael Kinzinger ◽  
Jan Hourfar ◽  
Jörg Alexander Lisson
Keyword(s):  
Side Effects ◽  
Lower Percentage ◽  
Molar Distalization ◽  
Maxillary Molars ◽  
Maxillary Molar ◽  
Force Moment ◽  
Maxillary Premolars ◽  
Anchorage Loss ◽  
Upper Molar

Abstract Purpose Conventional anchorage with exclusively intraorally anchored appliances for non-compliance molar distalization combines a palatal acrylic button with periodontal anchorage. This type of anchorage is critically discussed because of the temporary hygienic impairment of the palate and the uncertain anchoring quality of the button. A purely dentally/periodontally anchored Pendulum K appliance was developed, which is exclusively anchored via four occlusal rests. The aims of this pilot study were to examine the suitability of the skeletonized Pendulum K for distalization of maxillary molars, and to investigate the quality of this alternative anchoring modality. Patients and methods In all, 10 patients received skeletonized Pendulum K appliances attached to all maxillary premolars for bilateral molar distalization. Supporting anchorage through an acrylic button adjacent to the anterior palate was not used. The pendulum springs were initially activated on both sides with a distalization force of 220 cN each and provided with uprighting and toe-in bends. The specific force/moment system was regularly reactivated intraorally by adjustment of the distal screw. Results The study demonstrates the suitability of the skeletonized Pendulum K appliance for the distalization of maxillary molars (3.28 ± 0.73 mm). Side effects on the molars were slight distal tipping (3.50 ± 2.51°/PP, 3.00 ± 1.41°/SN) and mesial inward rotation (average 2.75 ± 7.50° and 4.50 ± 12.77°). Significant anchorage loss occurred in the form of mesialization of the incisors by 1.40 ± 0.82 mm and of the first premolars by 2.28 ± 0.85 mm. Conclusion The skeletonized Pendulum K appliance allows compliance-free upper molar distalization. Exclusively dental/periodontal anchorage resulted in a lower percentage of molar distalization compared to a conventional anchoring preparation of the Pendulum K with a palatal acrylic button. Anchorage loss had a comparatively stronger effect on the anchoring premolars but less on the incisors. Typical side effects on the molars such as distal tipping and mesial inward rotation were remarkably low.

Sign in / Sign up

Export Citation Format

Share Document