Manubrio-stapedioplasty: new surgical technique for malleus and incus fixation due to tympanosclerosis

2015 ◽  
Vol 129 (6) ◽  
pp. 587-590 ◽  
Author(s):  
L Sennaroglu ◽  
V Gungor ◽  
G Atay ◽  
S Ozer

AbstractObjective:This paper reports the authors' technique of manubrio-stapedioplasty using glass ionomer cement for malleus and incus fixation due to tympanosclerosis.Methods:A retrospective case review was conducted of five patients with conductive hearing loss (mean pre-operative air–bone gap of 42.75 dB) treated in a tertiary referral centre. The hearing results of a manubrio-stapedial bone cement ossiculoplasty technique, utilised on the five patients, were analysed. All cases were Wielinga and Kerr tympanosclerosis classification type 2 (attic fixation of the malleus-incus complex with a mobile stapes). The incus and head of the malleus were removed in all patients, and the manubrium was directly connected to the head of the mobile stapes using glass ionomer cement. Patients were evaluated in terms of pre- and post-operative audiometric results; hearing gain and post-operative air–bone gap were the main outcome measures.Results:Mean post-operative air–bone gap was 5.25 dB. Four patients had an air–bone gap of less than 10 dB; the remaining patient had an air–bone of 12.50 dB.Conclusion:Manubrio-stapedioplasty is an effective method for ossicular reconstruction in cases of malleus and incus fixation due to tympanosclerosis.

2009 ◽  
Vol 129 (12) ◽  
pp. 1368-1373 ◽  
Author(s):  
Hatice Celik ◽  
Sevim Aslan Felek ◽  
Ahmet Islam ◽  
Munir Demirci ◽  
Erdal Samim ◽  
...  

2012 ◽  
Vol 270 (5) ◽  
pp. 1593-1596 ◽  
Author(s):  
Haşmet Yazıcı ◽  
Hakkı Uzunkulaoğlu ◽  
Hatice Karadas Emir ◽  
Zeynep Kızılkaya ◽  
Sedat Doğan ◽  
...  

2015 ◽  
Vol 7 (1) ◽  
pp. 4-7
Author(s):  
Prakash Lokhande

Abstract Aims To evaluate the microhardness of type II glass-ionomer cement (GIC) (restorative) and zirconia based glass –ionomer cement. Materials and Methods Twenty cylindrical samples measuring 5mm (diameter) and 5mm in length were prepared with type II glass-ionomer cement that is restorative (n=10) and zirconia based glass-ionomer-cement (n=10). Finishing and polishing was made with coarse grit to fine grit. Then samples were subjected to Vickers hardness tester by using digital micro hardness tester (Zwick/Roell) under a load of 300 grams for 15 seconds. The data obtained was subjected to statistical analysis and unpaired‘t’ test was used to compare the micro hardness between two groups. Result Zirconia based glass-ionomer cements showed better micro hardness values as compared to that of type II glass-ionomer cement (restorative). Conclusion Better material with increased hardness like zirconia based GIC should be used in today's clinical practice. Further studies should be carried out to check other physical properties of zirconia based GIC. How to cite this article Lokhande P, Shivanna V. Comparative evaluation of micro hardness of type 2 Glass Ionomer cement (restorative) and Zirconia based GIC- An in vitro study. CODS J Dent 2015;7:4-7


2019 ◽  
pp. 61-67
Author(s):  
Xuan Anh Ngoc Ho ◽  
Anh Chi Phan ◽  
Toai Nguyen

Background: Class II restoration with zirconia inlay is concerned by numerous studies about the luting coupling between zirconia inlay and teeth. The present study was performed to evaluate the microleakage of Class II zirconia inlayusing two different luting agents and compare to direct restoration using bulk fill composite. Aims: To evaluate the microleakage of Class II restorations using three different techniques. Materials and methods: The study was performed in laboratory with three groups. Each of thirty extracted human teeth was prepared a class II cavity with the same dimensions, then these teeth were randomly divided into 3 groups restored by 3 different approaches. Group 1: zirconia inlay cemented with self-etch resin cement (Multilink N); Group 2: zirconia inlay cemented with resin-modified glass ionomer cement (Fuji Plus); Group 3: direct composite restoration using bulk fill composite(Tetric N-Ceram Bulk Fill). All restorations were subjected to thermal cycling (100 cycles 50C – 55 0C), then immersed to 2% methylene blue solution for 24 hours. The microleakage determined by the extent of dye penetration along the gingival wall was assessed using two methods: quantitative and semi-quantitative method. Results: Among three types of restorations, group 1 demonstrated the significantly lower rate of leakage compared to the others, while group 2 and 3 showed no significant difference. Conclusion: Zirconia inlay restoration cemented with self-etch resin cement has least microleakage degree when compare to class II zirconia inlay restoration cemented with resin-modified glass ionomer cement and direct composite restoration using bulk fill composite. Key words: inlay, zirconia ceramic, class II restoration, microleakage.


Author(s):  
Nagalakshmi Chowdhary ◽  
N. K. Kiran ◽  
A. Lakshmi Priya ◽  
Rajashekar Reddy ◽  
Arvind Sridhara ◽  
...  

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