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   2009| October-December  | Volume 9 | Issue 4  
    Online since May 24, 2017

 
 
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ORIGINAL ARTICLES
Comparison of five impression techniques for post space
Niraj Mishra, Dipti S Shah, Rupal J Shah
October-December 2009, 9(4):219-222
Aim: This study tries to determine the righi technique for an accurate impression of post space in all dimensions. Materials and Methods: Five freshly extracted maxillary centrai incisore are embedded in a plaster block. The post space is prepared up to five number peeso reamer leaving four-mm gutta-percha at the apex. Then we use light and medium polyvinylsiloxane; five different techniques to impress post space with and without 24-gauge anesthetic needle vent and 26-gauge reinforcement wire. In all techniques except the one which uses lentulo spirai disposable tips are used to express light polyvinylsiloxane impression material into post space. Result: We evaluate 125 samples, 25 from each technique, for the presence of voids and completeness of impressions using a magnifying lens of three-and-a-half magnification. Impression techniques produce void-free and complete impressions when anesthetic needle vent and reinforcement wires are used. The technique which uses lentulo spirai to express impression material into the post space produces complete impressions. However, as there is no provision for escape of air at the time of impression material injection into the post space, voids incorporated into the impressions produced inaccurate impressions. Conclusion: Use of anesthetic needle vent and reinforcement wire is recommended to produce accurate and void-free impressions of post space while use of lentulo spirals to express impression material into the post space is not recommended.
[ABSTRACT]   Full text not available  [PDF]
  981 161 -
Designing options for mandibular unilateral distal extension removalble partial dentures
Meena A Aras, Kennedy Mascarenhas
October-December 2009, 9(4):223-226
Designing a unilateral distal extension removabie partial denture (RPD) is often challenging for a clinician. Often, the use of conventional RPD design techniques results in a prosthesis that both the dentist and patient consider a failure. The two main difficulties encountered are (i) to obtain suitable retention on the dentulous side of arch (ii)stability of the denture to horizontal and vertical displacement. This artide reviews the designing options for unilateral distal extension cases taking into consideration various forces acting on the denture and the means to control the same.
[ABSTRACT]   Full text not available  [PDF]
  821 115 -
TRIBUTE
A tribute to the teacher of teachers

October-December 2009, 9(4):241-242
From Dr. Solomon I was a postgraduate student of Dr. T.M.Udani (1962 -3rd batch) at the Govt.Dentai College,Bombay whose intellectual thinking.zest for knowledge, meticulousness and lucid expression has played a role in this academic career. This impact has also been seen across the Prosthodontists trained by him in this country who have a common thread of respect for this great personality. Dr.Udani made a significant contribution as a teacher, academician par excellence, a researcher with openess, always ready to share his thoughts .An unique teacher in Prosthodontics who made us to think.develop our lives fuller and to strive better with a conscientious mind. A guide and leader with highest Ievel of perfection becoming of a Prosthodontist. This made an enduring impression to the first generation of Prosthodontic teachers in this country His communication skills, instant analytical mind,research accumen ability to comprehend complex mechanisms in theory or research, uncompromising integrity, decisions sometimes unpopular, and strife for perfection whether dentistry or otherwise, were unmatched and admirable. He lived a life of simplicity Among the quality of our IPS officers, the late Dr. T.M.Udani, Founder President of Indian Prosthodontic Society stands out prominently. Dr. Udani was a prolific leeturer and a great teacher in the subject of Prosthetic Dentistry. He was also the Dean of Govt. Dental college and hospital, Mumbai for many years. He Passed away on October 19th 2009 in Pittsburgh USA. He was a pillar of strength in forming the Indian Prosthodontic Society on a national Ievel when I was the founding secretary of IPS. His contribution was legendary in the academic field, not only for the content but also for his endearing style. he was gently demanding from students and was a kind of effective mentor to all his students. He was a good administer as well. In His honor, the indian Prosthodontic Society should dedicate the the 18th IPS conference with all its and orderliness with an unforgetful passion for classical western music and arts.He had a large circle of friends beyond the Prosthodontic umbrella. He will be remembered as a man of many faces. His didactic expressions with humour, dominating influence,ability to perceive precision in workmanship, the correct use of language,unfogettable never ending discussions during seminars and thesis preparation and also on various other topics, some even besides Prosthodontics is stili remini s cent. He has helped us in turn to train postgradutes in our country with the ideals and goals he had aspired and cherished which has kept the standards of Prosthodontics in India. Prosthodontists both the older and younger gereration salutes this gentleman who once taught Prostodontics in India during its early formative years. DR.Udani became a close friend to ali his students.He had the utmost confidence in me to bestow the distinct honour to become the member of the first managing committe of IPS and to conduct the first IPS conference in Madras in 1974. Prof. Dr. med. dent EGR. Solomon Emeritus Professor. Saveetha Dental College, Chennai, India programs so that he is remembered in the years to come and model ourselves after him. I remember his inspiration and his contribution to the IPS when I mooted the idea of forming the Prosthodontic society in India in 1972. I also suggest we, the Executive council of IPS, should also commemorate in his name a cash award for the best paper presentation by a PG student in the PG annual conferences. A certain sum say 1 lakh may be invested as fixed deposit from our IPS savings collected over the years and give the award from the interest. It may be considered as one constructive activity of our association and to make good of our funds. I have lost a dear and a true friend. May his soul rest in everlasting peace. F. D. Mirza I was really pained to read about Dr Udani. He was one of the gretest not only in our speciality but in Dentistry and respected ali over the world 111 him we will miss a great Prosthodontist, a great teacher and above ali a great human being. We all pray that his soul rests in peace I shall be grateful if you could kindly sencl this msg to his family. Paramjit Singh Dr. T. M. Udani, a teacher par excellence, who strived to get recognition for the prosthodontic faculty as an inportant speciality in our country, left for his heavenly abode on 19th Oct. 2009 As one of the founder member of the Indian Prosthodontic Society, he was instrumentai in steering the way for IPS as a speciality Professional society. I recall his unique style of teaching during seminars wherein his distant gaze and loud speech with a gaping mouth could not be emulated by anyone. Infact the questions that he asked the students were always thought provoking and added to the creative input of the post graduates. He stili continued working even after his long innings at Government Dentai College, Mumbai, as Professor & Head and then as Dean. His prescence in some of the IPS conferences added not only grace to the conference but also motivated many of the faculty and students. At this juncture, I pray that his Soul rest in peace. As the President ofindian Prosthodontic Society, suggestions by IPS members to dedicate a lecture/oration in his name are being positively considered. I salute Dr Udani and recognise ali his efforts for taking Prosthodontics to another level in India. S. J. Nagda
[ABSTRACT]   Full text not available  [PDF]
  838 38 -
REVIEW ARTICLES
Recent advances in endodontic post material
Madhavi S Kotipalli, Vikas N Vartak, Aruna J Bhandari
October-December 2009, 9(4):197-201
For many years, metal posts were used extensively for restoration of endodontically treated teeth. Their popularity is, however, declining now and there is a widespread interest in the use of non-metallic post material and techniques. Growing interest in esthetic dental restorations and adhesion dentistry has driven both manufacturers and dentists to create some innovative new post material like fiber reinforced composite and ceramics. This article provides a brief overview of recent advances in endodontic post material that have had a significant impact on the art and science of endodontic post placement.
[ABSTRACT]   Full text not available  [PDF]
  650 77 -
GUEST EDITORIAL
Dr. T.V. Padmanabhan, President IPS
Thallam V Padmanabhan
October-December 2009, 9(4):179-179
Full text not available  [PDF]
  643 44 -
ORIGINAL ARTICLES
Manufacturer supplied tray adhesive vs. Universal tray adhesive: An in vitro study
Divy Vashisht, MR Dhakshaini, Anil K Gujjari
October-December 2009, 9(4):209-213
Objective: The purpose of this study is to evaluate and compare the tensile bond strength of GC Universal paint-on adhesive and the adhesive supplied by the rnanufacturer using vinyl polysiloxane impression materials (medium body and heavy body) with autopolymerizing acrylic (PMMA) custom tray material. Material and Methods: A total of 120 custom tray resin and poly vinyl chloride specimens were fabricated. Effectiveness of universal tray adhesive was compared with the manufacturad tray adhesive using the two viscosities of two brands of vinyl polysiloxane impression materials and tested. For tensile strength testing, different viscosities of the brands were dispensed in the cylinders attached to the custom tray specimen coated by the universal and rnanufacturer supplied tray adhesive. Each of these specimens was then subjected to tensile load in Lioyd's Universal Testing Machine. Data obtained was statistically analyzed. Results: Analysis of tensile bond strength revealed that the universal tray adhesive showed better strength and was statistically significant when compared to the rnanufacturer supplied tray adhesive. The tensile bond strength test revealed statistically significant difference between the two brands of vinyl polysiloxane. Conclusion: Within the limitations of this in vitro study, the universal tray adhesive is more effective than the rnanufacturer supplied tray adhesives.
[ABSTRACT]   Full text not available  [PDF]
  592 72 -
Reliability of intra oral anatomical landmarks in establishing occlusal plane in edentulous subjects
Sridhar Nailady Shetty
October-December 2009, 9(4):214-218
Statement of Problem: Difficulty in accurate location of occlusal piane due to individuai variability and uncertainty of landmarks among edentulous subjects. Purpose: To establish the reliability of certain intraoral anatomical landmarks in establishing the occlusal piane in edentulous subjects. Materials and Methods: Samples of 75 edentulous subjects of both the sexes were selected randomly. A vestibular impression to record the corner of the mouth and buccinator groove was made in 25 subjects. In 50 subjects, parotid papilla and retromolar pad were located and the relation of both the landmarks was recorded to the established ala-tragus piane. Results: Analysis showed the consistency of occlusal piane established from the corner of the mouth through the buccinator groove using a vestibular impression method. The retro molar pad also showed a consistent relation with the occlusal piane. However, the parotid papilla showed a variable relation with the occlusal piane. Conclusion: Corner of the mouth, buccinator groove and retro molar pad are reliable guides in accurate location of the occlusal piane in edentulous subjects whereas parotid papilla can only be used as an adjunctive aid in the determination of occlusal plane.
[ABSTRACT]   Full text not available  [PDF]
  553 92 -
REVIEW ARTICLES
Comparative analysis of establishing occlusion in fixed/removable partial denture, complete denture and implant
Sumit Sethi, Dilip Kakade
October-December 2009, 9(4):190-196
Occlusion as a subject, particularly as it relates to joint function, needs proper attention. Occlusion and its considerations vary in different types of prothesis likre fixed partial denture, removable partial denture, complete denture and imlant. For each of the above types, the journey towards achieving occulsion varies at each step from diagnostic stage to interocclusal records to material and occlusal morphology of the teeth. The above distinctions are not very clear and often confusing. This article is a review of all the factors considered for establishing occlusion in different types of prosthesis and a comparison at each step to emphasize their significance.
[ABSTRACT]   Full text not available  [PDF]
  535 81 -
ORIGINAL ARTICLES
Effect of denture cleansers on surface roughness and softness of autopofymerizing soft denture relining material
V Leena Rani, Anil Kumar Gujjari, Raghavendra Swamy
October-December 2009, 9(4):205-208
Purpose of Study: To evaluate and compare the effects of two denture cleansers on surface roughness and softness of two autopolymerizing soft denture relining material. Materials and Methods: Sixty specimens of PMMA denture base material were relmed with acrylic (Coe-Soft) and silicone relining material (Ufigel-P). These specimens were immersed in cleansers (Clinsodent httydent) and water for eight hours at room temperature. For the remaining 16 hours they were stored in artificial saliva at 37°C for 60 days. Readings for surface roughness and softness were taken at the end of day 1, 15, 30 and 60 and statisticallv analyzed usmg ?t test and ANOVA. Results: Surface roughness of both the test and control groups of acrylic relining material increased with time. For the same treatment protocol, no significant difference was seen within and between the silicone liner groups. Softness of both test and control groups of acrylic lining material decreased with time. Slight decrease in softness was seen tn ali the silicone liner groups. Acrylic relining material exhibited more changes in surface roughness and softness than silicone relining material at ali time intervals. Conclusion: Withrn the limitations of this in vitro study, specimens immersed in the powder form of cleansers showed more changes in surface roughness and softness than the tablet form. These changes were more with acrylic relining material than silicone relining material.
[ABSTRACT]   Full text not available  [PDF]
  564 49 -
Simple solution for impressions in microstomia patients: Current concepts
Sanjiv Rajender Dagar, Disha Arun Mardikar, Ashok J Pakhan, Ram U Thombare
October-December 2009, 9(4):202-204
Limited mouth opening complicates treatment and compromises on it. Dealing with these patients is a challenging situation. Majority of these patients can be treated with exercise and stretching movements before impressions are made. Some do not respond to these procedures because of facial scarring and surgical manipulation of facial muscles. Modification of the technique as per the need of situation is the key to a successful impression procedure. This article describes techniques for fabrication of different types of sectional tray designs for both stock as well as custom tray, from various tray materials, to make preliminary and final impressions for such patients. In sectional tray system, the two halves are inserted independently, removed separately, and reassembled extra orally to make the cast as per the case demand for ease of procedure and comfort of the patient.
[ABSTRACT]   Full text not available  [PDF]
  532 68 -
REVIEW ARTICLES
Distal extension bases: Removable partial dentures
Ra’ed Omar Abu Hantash, Mohammed H.Abu H Abu Yunis
October-December 2009, 9(4):186-189
Distal Extension Bases-Removable Partial Dentures were considered one of the best treatment options to restore missing posterior teeth in upper and lower jaws. Recently, this kind of treatment has begun to disappear gradually due to the appearance of dental implant world. In this paper I'm going to review some important aspects for the success of such treatment.
[ABSTRACT]   Full text not available  [PDF]
  528 57 -
Mandibular finite helical axis pathway
Shilpa Shetty
October-December 2009, 9(4):180-185
Condylar and incisor trajectories are often used for the study of mandibular movements. Condylar trajectories, however, depend on the location of the reference point and can be interpreted erroneousiy. In contrast, the helical axis analysis yields an unequivocal description of rigid body kinematics. The finite helical axis (FHA) is a mathematical model which can be used to describe comprehensively the movements of the rigid body.an optoelectronic jaw tracking system, JAWS 3D, was usedfor this purpose The finite helical axis were never localized within the condyle and often were located outside the mandible. The analysis of the FHA pathways yields more information on whole mandibular movements than simply the movements of a single condylar point.
[ABSTRACT]   Full text not available  [PDF]
  541 43 -
CLINICAL REPORTS
Hemimaxillectomy rehabilitation using simple hollow bulb obturator
Robin Mathai Joseph
October-December 2009, 9(4):230-233
Partial maxillectomy defect presents a considerable reconstructive challenge for the prosthodontist. It results in devastatine effects on cosmetic, functional and psychological aspects of the patient. The factors which determine the prognosis of prosthetic reconstruction are size of defect, availability of hard and soft tissues in defect area, proximity of vital structures, systemic conditions and, the most important of all, patients' attitude and temperament. This article describes the step by step clinical and laboratory procedure involved in the rehabilitation of a hemimaxillectomy patient using simple hollow obturator prosthesis to improve patient compliance for a more definitive future treatment pian.
[ABSTRACT]   Full text not available  [PDF]
  531 39 -
Use of naturai teeth in immediate removable denture treatment
Vanderlei L Gomes, Jose M.C Costa, Juliana B Gomes, Maria H. R Godoy, Julio B Gomes, Barbara L Lucas
October-December 2009, 9(4):234-236
The installation of an immediate complete denture can maintain both oral function and esthetics for a patient. This report describes the fabrication of an immediate complete maxillary denture using the patients natural teeth. As soon as surgery is compieteci, the patients vertical dimension, tooth position, alignment, occlusion, color and shape are restored.
[ABSTRACT]   Full text not available  [PDF]
  487 50 -
Prosthodontic rehabilitation of patient with orbital defect
Sonali Perii, Kalinga K Sahoo, Aruna J Bhandari, SA Gangadhar
October-December 2009, 9(4):237-240
Eyes are vital organs not only for vision but also as an important component of facial expression. Loss of an eye due to trauma or disease resulting in facial defect has a crippling effect on the patient's psychology. The placement of a good artificial prosthesis serves as a great psychological, social, and cosmetic benefit in rehabilitation of the patient. This article discusses prosthetic rehabilitation, in an elderly female patient with a massive orbital defect on the left side of the face, using room temperature vulcanizing silicone material.
[ABSTRACT]   Full text not available  [PDF]
  491 46 -
Custom made gold lid implant prosthesis for rehabilitation of Lagophthalmos
Shri Krishna Kabra, Alok Thakkar, Veena Jain
October-December 2009, 9(4):227-229
Patients with lagophthalmos (inability to dose eyelid) are at risk of severe eye complication due to corneal exposure. Various treatment modalities can be used to restore function and esthetics. Among all, custom gold lid implant is an effettive method of treatment with little morbidity and better patient compliance. The prosthodontist functions as an integral part of the treatment team to achieve the most functional and esthetic result.
[ABSTRACT]   Full text not available  [PDF]
  488 29 -