Journal of Advanced Clinical and Research Insights

1.ORIGINAL ARTICLE

A comparative evaluation of marginal fit of all ceramic crowns fabricated with zirconia cored crowns and monolithic crowns – An in vitro study

V. Amuthavalli, P. S. Manoharan, M. Shivasakthy

[Year:2020] [Month:January-February] [Volume:7 ] [Number:1] [Pages No:1-6] [No. of Hits: 98]


ABSTRACT

Background: Marginal fit is a very important factor considering the restoration’s long-term success. Because of poor marginal fit of the crowns, there will be exposure of luting material into the oral environment and causes secondary caries. The purpose of this study was to compare the marginal fit of three all-ceramic crowns, zirconia copings, and zirconia coping with layering and monolithic crowns.

Aim: This study aims to evaluate marginal fit of all-ceramic crowns fabricated with zirconia cored crowns and monolithic crowns.

Materials and Methods: From a standardized die of a prepared tooth, 30 dies were poured with type IV gypsum product. The 30 dies were divided into three groups. First group was zirconia coping as Group I. Zirconia copings were veneered as Group II. Monolithic crowns as Group III were fabricated on the dies with 10 samples in each group 10 crowns were cemented with resin cement. Marginal fit of sectioned crowns was measured using stereomicroscope. Six points were compared in all Groups I, II, and III.

Results: Marginal fit of monolithic crown has better marginal fit than zirconia coping with layering.

Conclusion: It was concluded that mean marginal fit of zirconia copings Group I, zirconia copings with veneering and monolithic crowns Group III significantly differs.

Keywords: Computer-aided design/computer-aided manufacturing, marginal fit, metal die, monolithic crowns, stereomicroscope, zirconia crowns, zirconia crowns with layering

How to cite this article: Amuthavalli V, Manoharan PS, Shivasakthy M. A comparative evaluation of marginal fit of all ceramic crowns fabricated with zirconia cored crowns and monolithic crowns - An in vitro study. J Adv Clin Res Insights 2020;7(1):1-6.

Received: 11 January 2020;

Accepted: 15 February 2020


How to cite this article: Amuthavalli V, Manoharan PS, Shivasakthy M. A comparative evaluation of marginal fit of all ceramic crowns fabricated with zirconia cored crowns and monolithic crowns - An in vitro study. J Adv Clin Res Insights 2020;7(1):1-6.

2.ORIGINAL ARTICLE

Effect of different polishing time on the color stability of provisional materials: An In vitro study

Hortencia Recio, Leili de Leon, Juan Carlos Sebastian Sanchez

[Year:2020] [Month:January-February] [Volume:7 ] [Number:1] [Pages No:7-12] [No. of Hits: 81]


ABSTRACT

Background: Provisional fixed restoration is an essential component in prosthodontics treatment. These materials may experience color change for surface roughness. To reduce it, a polishing technique is required with a time setting specified.

Aims and Objectives: The aim of this study was to evaluate the effect of different polishing time on the color stability of provisional materials.

Materials and Methods: One hundred and forty-four resin blocks were prepared, divided into Group A, PMMA acrylic resin and Group B, bis-acryl resin. They were polished with goat hairbrush and diamond paste. Twenty-four hours stored in distilled water and 12th day on the staining solution coffee and wine. They were measured with a spectrophotometer, analyzed, and processed with the CieLab system, to calculate color difference ΔE.

Results: On the 3rd day of the immersion period, the lowest mean value was showed with 1 min polishing on Group A, showing to be statistically significant, P = 0.011. In Group B, the lowest mean value was showed with 1 min 30 s. At the 7th and 12th days immersion period, the lowest mean value was showed with 30 s polishing among the groups.

Conclusion: Polishing 30 s showed the lowest ΔE values on PMMA and bis-acryl resin. Mean color differences were above the clinical acceptability threshold ΔE > 3.3. Regarding the staining agent, the highest ΔE values were observed in coffee.

Keywords: Acrylic resin, bis-acryl composite resin, color, polishing

How to cite this article: Recio H, de Leon L, Sanchez JCS. Effect of different polishing time on the color stability of provisional materials: An In vitro study. J Adv Clin Res Insights 2020;7(1):7-12.

Received: 17 January 2020;

Accepted: 19 February 2020


How to cite this article: Recio H, de Leon L, Sanchez JCS. Effect of different polishing time on the color stability of provisional materials: An In vitro study. J Adv Clin Res Insights 2020;7(1):7-12.

3.CASE REPORT

Drug-induced gingival enlargement in a hypertensive patient with chronic smoking behavior - A case report

Lakshmi Balraj, Tejavathi Nagaraj

[Year:2020] [Month:January-February] [Volume:7 ] [Number:1] [Pages No:13-15] [No. of Hits: 103]


ABSTRACT

Drug-induced gingival enlargement is often observed as a side effect of some pharmacologic agents which might have been prescribed for non-dental reasons, for which the gingival tissue is not the intended target. These medications mainly include antihypertensives, anticonvulsants, and immunosuppressants class of drugs. Here, we describe a case of amlodipine-induced massive gingival enlargement in a 40-year-old male patient with chronic smoking habit. The patient was advised regarding the gingival enlargement and its probable cause. His family physician was consulted, who substituted an angiotensin receptor blocker for the amlodipine. He was further counseled for tobacco cessation, instructed on good oral hygiene techniques, and advised for a surgical periodontal treatment.

Keywords: Amlodipine, anti-anxiety agents, antihypertensive agents, cigarette smoking, gingival overgrowth

How to cite this article: Balraj L, Nagaraj T. Drug-induced gingival enlargement in a hypertensive patient with chronic smoking behavior - A case report. J Adv Clin Res Insights 2020;7(1):13-15.

Received: 20 January 2020;

Accepted: 21 February 2020


How to cite this article: Balraj L, Nagaraj T. Drug-induced gingival enlargement in a hypertensive patient with chronic smoking behavior - A case report. J Adv Clin Res Insights 2020;7(1):13-15.

4.CASE REPORT

Peripheral ossifying fibroma: A rare entity in pediatric maxilla

Sunil Vasudev, Partha Pratim Debnath, S. Deepak, M. S. Sahana

[Year:2020] [Month:January-February] [Volume:7 ] [Number:1] [Pages No:16-19] [No. of Hits: 109]


ABSTRACT

Gingival hyperplasia is considered to be one of most commonly encountered lesions in the intra oral cavity. Most of them occur due to localized irritational factors. Broadly, they are termed as ""Epulis."" Peripheral ossifying fibroma (POF) is a soft-tissue growth that is usually seen on the interdental papilla. Our case report presented 14-year-old boy with gingival overgrowth on palatal side of the anterior maxillary region since 5 months, which was treated with combination of CO2 laser and scalpel under local anesthesia. Post-operative follow-up was done for 1 year and no evidence of recurrence noted.

Keywords: Biopsy, laser, peripheral ossifying fibromas

How to cite this article: Vasudev S, Debnath PP, Deepak S, Sahana MS. Peripheral ossifying fibroma: A rare entity in pediatric maxilla. J Adv Clin Res Insights 2020;7(1):16-19.

Received: 11 January 2020;

Accepted: 22 February 2020


How to cite this article: Vasudev S, Debnath PP, Deepak S, Sahana MS. Peripheral ossifying fibroma: A rare entity in pediatric maxilla. J Adv Clin Res Insights 2020;7(1):16-19.

5.CASE REPORT

Neurofibroma of the mandible masquerading as temperomandibular joint ankylosis: Report of a unique case

Kavitha Prasad, Tanvy S. Sansgiri, K. M. Sejal, Roopa S. Rao

[Year:2020] [Month:January-February] [Volume:7 ] [Number:1] [Pages No:20-24] [No. of Hits: 96]


ABSTRACT

Neurofibroma (NF) is a benign neoplasm of non-odontogenic origin arising from peripheral nerves. Its appearance in the oral cavity is rare and accounts for only 6% of all benign oral cavity tumors. We present an uncommon case report of a 4-year-old boy who reported to us with the complaint of reduced mouth opening for the age of 1½ years, which gave an initial clinical impression of temperomandibular joint ankylosis. Radiographic examination showed an osteolytic lesion of the mandible with soft-tissue extension into the infratemporal fossa and fusion to the pterygoid plates. As a result, the mandible was fused to the base of the skull giving rise to extra-articular or pseudoankylosis of the mandible to the maxilla. Histopathological examination of incisional biopsy was reported as benign fibromyxoid lesion. The patient was taken up for surgical resection of the tumor under general anesthesia. The excisional biopsy specimen was reported as NF of mandible which was confirmed by immunohistochemistry. We report a case of pediatric NF of the mandible which gave the clinical picture of temporomandibular joint ankylosis. A systematic and thorough investigation is, therefore, mandatory to arrive at correct diagnosis and appropriate treatment planning. The clinical presentation, diagnostic challenges, and treatment plan of this case have been addressed in this report. This case serves to emphasize the need to recognize such conditions early, especially in children to reduce the functional and esthetic morbidity.

Keywords: Children, mandible, neurofibroma, temperomandibular joint ankylosis

How to cite this article: Prasad K, Sansgiri TS, Sejal KM, Rao RS. Neurofibroma of the mandible masquerading as temperomandibular joint ankylosis: Report of a unique case. J Adv Clin Res Insights 2020;7(1):20-24.

Received: 17 January 2020;

Accepted: 14 February 2020


How to cite this article: Prasad K, Sansgiri TS, Sejal KM, Rao RS. Neurofibroma of the mandible masquerading as temperomandibular joint ankylosis: Report of a unique case. J Adv Clin Res Insights 2020;7(1):20-24.