Members: Gyan Chand Jain, Reeta Jain

ABSTRACT : The study was primarily aimed at investigating the comparison between three dimensional miniplates versus conventional miniplates in mandibular fractures under functional load. Bite force readings were made using indigenous Bite Force Recorder in kilograms. Bite forces were recorded at the operated site and contralateral site of same region.Bite force recordings were done preoperatively before fixing Erich arch bar and postoperatively at th th st th th each follow up (7 , 14 , 21 , 28 , 90 day).It was concluded that the three-dimensional mini-plates in mandibular fractures is efficacious enough to bear masticatory loads during the osteosynthesis of fracture. It gives the advantage of reduced implant material and three dimensional stability with almost similar results as seen in two conventional mini-plates osteosynthesis.

Keywords– Bite force, conventional mini-plate, 3-D mini-plate, mandibular fracture.

Members: Nikita Garg, Sachin Ahuja, Seema Gupta, Eenal Bhambri, Amit Choudhary, Sumit Goyal

ABSTRACT:

Aim: To compare the effects produced by myofunctional versus fixed functional therapy on airway dimensions and hyoid bone position in skeletal class II growing patients.Material and Method: A retrospective study was carried out on pre and postfunctional lateral cephalometric radiographs of 20 Class II patients treated with fixed functional appliance and was compared with 20 Class II patients (mandibular retrognathism) treated with myofunctional appliance with respect to growth i.e. control sample of 15 subjects.Results: Analyses of the pre and post-functional means revealed that there was no statisticallysignificant increase in the airway dimension in fixed functional group and the position of the hyoid bone remain relatively constant throughout the treatment whereas in the myofunctional group a significant increase in the posterior airway dimension was found. Hyoid bone shifted forward in the horizontal dimension in myofunctional group but the shift was not significant and downward in all three groups.Conclusion: The fixed functional treatment did not cause any significant posterior airway changes in young adult patients as compared to myofunctional therapy where significant increase in the airway dimensions was found.

Keywords: Airway,fixed functional therapy, myofunctional therapy

Members: Dinesh Kumar Verma, Shallu Bansal, Rajat Pareek

ABSTRACT : This study analyzed the effect of mandibular advancement surgery on Pharyngeal Airway. Seven patients (two males and five females) were evaluated in this study, Linear measurements were done between posterior nasal spine and posterior pharyngeal wall; the distance between outline of the posterior border of the soft palate and posterior pharyngeal wall distance between the outline of the posterior border and the dorsum of the tongue and posterior pharyngeal wall; distance between the most superior point on the outline of the superior border of the epiglottis and posterior pharyngeal wall was taken were done preoperatively, immediate postoperatively and 6 months postoperatively Results suggested non-significant (P>0.05) changes among all the parameters evaluated on comparison. From the present study radiographic analysis suggested that mandibular advancement (BSSO) cases did not influence the airway space.

Keywords-Airway, BSSO, mandibular advancement

Members: Asthatwahi, Devendra Chaudhary

Abstract
This review of literature is focussed upon understanding the concept of bioactivity with the help of various bioactive materials currently in use in dentistry. Bioactive materials have gained popularity in the field of dentistry in the past two decades and have been in demand ever since. The aim of the review is to understand how various interactions take place at the material tissue interface, which gives rise to bioactivity of the material. The methodology used was to collect data and studies published on bioactivity by esteemed researchers. This review of literature is an attempt to understand the extensive studies which have been carried out by eminent researchers to understand the bioactivity of different dental materials and how this particular characteristic of bioactivity attribute to other characteristics of the dental materials.

Keywords: Bioactive materials,hydroxyapatite crystals, osteoconductive osteoproductive, regenerative, remineralisation

Members: SimratKaur Ghuman, Saurabh Kumar, Suresh Barayach, Sanjeev Kumar Salaria

Abstract
Dentin hypersensitivity is a common oral condition occurring because of dentinal exposure and is a significant clinical problem associated with pain often referred to as the “common cold of dentistry.”(Strassler HEet al 2008). It may be defined as a short or transient sharp pain or discomfort of a rapid onset that arises from exposed dentin in response to a non-noxious stimulus, or in other words, one that would not under normal circumstances(JonesJ et al 2011)and cannot be ascribed to any other dental defect or pathology. Dentinal exposure may occur via several means for example; the enamel or cementum which normally covers the dentine surface may be removed or denuded as a result of caries, attrition, abrasion or erosion, alternatively, in some individuals the cementum and enamel which normally cover the dentine do not meet due to developmental anomaly, (BartoldPet al 2006) and denudation of the root surface can be due to loss of cementum and or gingival recession increasing with age , chronic periodontal disease, periodontal surgery result in dentine exposure. Many treatment options available till date ranging from home use products to office treatment but they are short acting and needs repeated application. Recently, diode lasers are used for the effective management of dentinal hypersensitivity with its long term effectiveness.

Keywords: dentinal hypersensitivity, patent dentinal tubules, dentinal tubular occlusion

Members: NavreetBhasin,Shashikala Jain, Sandeep Kumar, RajnishAggarwal, SunitaChoudhary, Nancy Singla

Abstract: In clinical practice, failures may occur because of impact load, fatigue load, improper design, microdefects in the ceramic, inadequate metal support, poor abutment preparation, technical errors, incompatible thermal coefficients or occlusal prematurity. Knowledge regarding the clinical complications that can occur in fixed prosthodontics enhances the clinician’s ability to complete a thorough diagnosis, develop the most appropriate treatment plan, communicate realistic expectations to patients and plan the time intervals needed for post treatment care.The purpose of this article is to present regarding the classification and management of failures in fixed dental prosthetics.

Keywords: Crown margins, failures, gingival esthetics, restorations

Members: SupreetKaur,Shashikala Jain,Sandeep Kumar,RajnishAggarwal,SunitaChoudhary,Harpreet Singh

Abstract : Gingival tissue retraction is an important step in the fabrication of a crown and or bridge. The prepared finish lines should be clearly duplicated on the cast for the good fit of the prosthesis. This review article attempts to describe the various methods of gingival tissue retraction.

Keywords: Gingival tissue retraction, retraction cord

Members: GurpreetSingh , Sachin Ahuja , Seema Gupta , EenalBhambri, AmitChoudhary

Abstract: Space closure is one of the most challenging processes in Orthodontics and requires a solid comprehension of biomechanics in order to avoid undesirable side effects. Understanding the biomechanical basis of space closure better enables clinicians to determine anchorage and treatment options. In spite of the variety of appliance designs, space closure can be performed by means of friction or frictionless mechanics, and 30each technique has its advantages and disadvantages. Friction mechanics or sliding mechanics is attractive because of its simplicity; the space site is closed by means of elastics or coil springs to provide force, and the brackets slide on the orthodontic arch wire. On the other hand, frictionless mechanics uses loop bends to generate force to close the space site, allowing differential moments in the active and reactive units, leading to a less or more anchorage control, depending on the situation.

Keywords: Space closure, Elastic chain; elastomeric module with ligature; T-loop

Members: Manveen Kaur Dhaliwal, Shashikala Jain, Sandeep Kumar, Rajnish Aggarwal, Sunita Choudhary, Navleen Kaur

Abstract: Accurate impressions and meticulous attention to detail provide a foundation for successful implant prosthodontics. A comprehensive understanding of the range of prosthetic components is essential and is often gained only by clinical experience. This paper demystifies the terminology, introduces the basic armamentarium and discusses the relative merits of different implant impression techniques.

Keywords: Implants, impression materials, impression techniques

Members: AmandeepKaur, Rameen Khosa

Abstract: Objective:To describe a rare case of monomorphic adenoma of the minor salivary gland. Clinical Presentation and Intervention: A 50-year-old patient presented with a painless swelling of 2-3 years duration in the chin region, appearing large permeative destruction lesion involving symphysis-menti and adjacent bodies of mandible with soft tissue component infiltrating into right sublingual and sub-mental space in MRI imaging. Histological findingswere suggestive of a monomorphic adenoma. Treatment: A complete surgical enucleation of the lobular tumor with an additional zone of adjacent normal tissue was performed No recurrence was observed after a 6-month follow-up. Conclusion: This case showed the possibility of minor salivary gland tumors and highlighted the need to consider them when making a differential diagnosis of swellings located in the sub-mental region.

Keywords: Monomorphic adenoma,salivary gland tumor, surgical enucleation

Members: Karthikeyan Ramalingam, Samdeep Goyal, Sathya Sethuraman

Abstract: Peripheral Giant Cell granuloma (PGCG) is one of the hyperplastic lesions of the oral cavity. It could arise from the periosteum or the periodontal membrane subsequent to chronic trauma or local irritation. It accounts for less than 10% of all hyperplastic gingival lesions, rarely exceeds 2cm in size and predominantly noted in females. We report a rare case of a large PGCG involving the right mandibular anterior gingiva in a 26- year-old male patient of Indian origin. It presented as a pinkishred nodule which showed multinucleated giant cells in fibrous cellular stroma along with extravasated RBCs in histopathology. The lesion was surgically excised and the patient is remaining disease free on follow-up.

Keywords: anterior region, males, mandibular gingiva, peripheral giant cell granuloma

Members: ArshiaKapoor,YogeshKumar,Neetu Jindal, RenuAggarwal

Abstract: Severe alveolar ridge resorption is a complicating factor in the construction of complete dentures that determines both stability and retention of the dentures. The Neutral Zone technique is an alternative approach in constructing stable complete denture in case of a highly atrophic mandible.The neutral zone is the area where the displacing forces of thelips, cheeks and tongue are in balance. The Neutral Zone technique aim is to construct denture in harmony with surrounding oral muscles, so that the denture does not get displaced during their activity.The clinical case report presented here describes the successful insertion complete denture utilizing neutral zone technique in a severely resorbed mandibular alveolar ridge.

Keywords : Atrophic mandible,Complete denture,Neutral zone , Neutral Zone technique.