Fracture resistance of endodontically treated premolars restored with bulk-fill composite resins: The effect of fiber reinforcement

Fereshteh Shafiei, Paria Dehghanian, Nasibeh Ghaderi, Maryam Doozandeh

doi : 10.4103/1735-3327.321871

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 60

Coronal restoration of endodontically treated teeth (ETT) with mesio-occluso-distal (MOD) cavities is of a great importance in long-term success of the treatment. This study evaluated the effect of fiber reinforcement on the fracture resistance (FR) of ETT restored with flowable or paste bulk (PB)-fill composite resin compared to conventional composite (CC) resin.

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Antibacterial effect of a disinfectant spray for sports mouthguards on Streptococcus sobrinus

doi : 10.4103/1735-3327.321870

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 59

Mouthguard (MG) disinfectant sprays are available for maintaining MG hygiene. The effect of these sprays against Streptococcus sobrinus is still unknown. The purpose of this study was to evaluate the antibacterial effect of an MG disinfectant spray against S. sobrinus using the modified ISO 22196 standard.

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Bond strength and microleakage of different types of cements in stainless steel crown of primary molar teeth

Somayeh Kameli1, Fatemeh Khani2, Marjan Bahraminasab3, Raheb Ghorbani4, Fatemeh Mashhadi Abbas5

doi : 10.4103/1735-3327.321869

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 58

The margin of crown is a significant area for plaque accumulations. Therefore, the ability of the cement to seal the margin is very important. The aim of the present study was to evaluate the bond (retentive) strength, microleakage, and failure mode of four different types of cements in stainless steel crown (SSC) of primary molar teeth. 

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Neurogenic induction of human dental pulp derived stem cells by hanging drop technique, basic fibroblast growth factor, and SHH factors

Safa Farhang1, Mitra Soleimani2, Maryam Ostadsharif1, Nazem Ghasemi2

doi : 10.4103/1735-3327.321868

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 57

The progressive destruction of nerve cells in nervous system will induce neurodegenerative diseases. Recently, cell-based therapies have attracted the attention of researchers in the treatment of these abnormal conditions. Thus, the aim of this study was to provide a simple and efficient way to differentiate human dental pulp stem cells into neural cell-like to achieve a homogeneous population of these cells for transplantation in neurodegenerative diseases.

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Effect of different laser treatments on the shear bond strength of zirconia ceramic to resin cement

Mahnaz Hatami1, Mohammadhossein Lotfi-Kamran1, Abdolrahim Davari2, Meisam Molazem3

doi : 10.4103/1735-3327.321867

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 56

Several techniques such as sand blast, silicoating, and laser irradiation have been introduced for reliable bond between zirconia and resin cement. This study aimed to assess and compare the effect of three types of lasers on the shear bond strength (SBS) of zirconia to resin cement.

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A survey on osteogenic effect of collagen-membrane derived from Rutilus kutum swim bladder in rat calvaria

Farid Bahrizadeh1, Hamidreza Azimi Lisar1, Noushin Jalayer Naderi2

doi : 10.4103/1735-3327.321866

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 55

The collagen membrane which obtained from bovine pericardium and human skin in Guided Bone Regeneration (GBR) is costly and may even cause transmission of diseases. Replacing conventional collagen membranes with a more easily accessible and cheaper ones will have economic benefits. The aim was to determine the osteogenic effect of collagen-membrane derived from Rutilus kutum swim bladder on rat calvaria.

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The effect of 10% alpha-tocopherol solution and 5% grape seed extract on the microhardness and shear bond strength to bleached dentin

Manvi Srivastava1, Ramakrishna Yeluri2

doi : 10.4103/1735-3327.321865

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 54

The aim of the study was to evaluate the effect of 10% alpha-tocopherol and 5% grape seed extract on the microhardness and shear bond strength (SBS) to bleached human dentin.

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Complications after dental rehabilitation under general anesthesia in Isfahan during February to May 2016

Maryam Ghafournia1, Alireza Eshghi2, Hamid Mosleh3, Pedram Iranmanesh4

doi : 10.4103/1735-3327.321864

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 53

Children undergoing dental rehabilitations by general anesthesia (GA) commonly experience postoperative symptoms such as pain, fever, sore throat, and sleepiness. The aim of the present study was to investigate the specific complications of pediatric dental GA procedure.

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Effect of various single file systems on microcrack formation in root canals: Scanning electron microscope study

Neelam Chandwani1, Aastha Ranka2, Ganesh R Jadhav1, Dolly Jagyasi2, Pooja Bopche3, Arihant Golchha4

doi : 10.4103/1735-3327.321863

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 52

The aim of this study was to compare dentinal crack formation in root canal walls following 3 single file systems with continuous rotation under a scanning electron microscope (SEM).

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Abrasiveness and whitening effect of charcoal-containing whitening toothpastes in permanent teeth.

Masoud Fallahinejad Ghajari1, Maryam Shamsaei2, Kimia Basandeh3, Maedeh Sadeghpour Galouyak3

doi : 10.4103/1735-3327.321862

Year : 2021  |  Volume : 18  |  Issue : 1  |  Page : 51

Charcoal toothpastes can whiten teeth through abrasion. The purpose of this study was to determine the level of whitening and abrasiveness of charcoal toothpastes in permanent teeth.

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