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Journal of Dentistry

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https://www.readbyqxmd.com/read/29492420/piezopuncture-assisted-canine-distalization-in-orthodontic-patients-two-case-reports
#1
Maryam Omidkhoda, Mehrdad Radvar, Majid Azizi, Nadia Hasanzadeh
With the increasing number of young adults seeking orthodontic treatment to improve their smile esthetics or oral function, the time spent wearing brackets is one of the biggest challenges for these patients. Various surgical techniques have been developed over the years to accelerate tooth movement and reduce the total treatment time. A newly introduced, minimally invasive procedure namely piezopuncture, which uses a piezosurgical tool to create multiple cortical punctures through the gingiva, is presented in this report of two extraction cases...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492419/adenoid-squamous-cell-carcinoma-of-oral-cavity-a-case-report
#2
Chandrakala J, Sahana Srinath, Girish Giraddi, Rohit Kumar Kendole
Adenoid squamous cell carcinoma is a rare variant of squamous cell carcinoma with features of adenoid pattern. It has been reported to originate in the sun- exposed skin of the head and neck region. Although rare, there are cases documented within the oral cavity and nasopharynx. The clinical behaviour and the prognosis are variable. We report a case of adenoid squamous cell carcinoma in a 63-year-old female patient presented with a large mass in the left mandibular alveolar ridge. Histologically, the lesion showed areas of conventional squamous cell carcinoma along with atypical epithelial cells forming a glandular pattern...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492418/diagnostic-efficacy-of-deeper-sections-in-routine-oral-histopathology-practice-a-retrospective-study
#3
Achla Bharti Yadav, Mala Kamboj, Anjali Narwal, Anju Devi
Statement of the Problem: Histopathology is a gold standard diagnostic tool for oral lesions. Nonspecific and overlapping microscopic features often pose diagnostic challenges in routine practice. In such conditions, deeper sections have utility to enhance the sensitivity and accuracy of the diagnosis. Purpose: To analyze the percentage of deeper sections requested and to evaluate the diagnostic efficacy of these deeper sections in routine oral histopathology practice...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492417/pain-perception-due-to-dental-injection-by-smartject-split-mouth-design-study
#4
Faezeh Ghaderi, Mahboobe Ahmadbeigi
Statement of the Problem: Dental injection is one of the most fearful procedures in dental setting, especially for children. Many researchers have attempted to find a painless method. As computer controlled local anesthesia delivery system devices (CCLADs) allow the speed rate and pressure of injection solution to be controlled, they may cause less pain during injection in comparison to the conventional method. Purpose: The aim of this study was to compare pain perception in dental injection by Smartject with conventional technique...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492416/effects-of-universal-and-conventional-mdp-primers-on-the-shear-bond-strength-of-zirconia-ceramic-and-nanofilled-composite-resin
#5
Farahnaz Sharafeddin, Soodabe Shoale
Statement of the Problem: The clinical success of ceramic depends on the quality of the bond between the zirconia and resin cement. Purpose: In the present study, the effects of universal and conventional MDP-containing primers were evaluated on the shear bond strength of zirconia ceramic and nanofilled composite resin. Materials and Method: Thirty blocks of zirconia ceramic (6mm×2mm) were prepared. Then the inner surfaces were air-abraded and divided into three groups (n= 10) as follows: untreated with primer (control group, I); All- Bond Universal (group II) and Z-Prime Plus (group III)...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492415/evaluation-of-infraorbital-canal-in-cone-beam-computed-tomography-of-maxillary-sinus
#6
Abdolaziz Haghnegahdar, Leila Khojastepour, Atefe Naderi
Statement of the Problem: Ignoring anatomic variations may lead to iatrogenic injuries by surgeons. Purpose: The aim of this study was to examine the relationship between the course of infraorbital canal and maxillary sinus using cone beam computed tomography scans (CBCT). Materials and Method: One hundred and ninety two CBCT scans were reviewed for 384 infraorbital canals. The anatomic variants of infraorbital canals were classified into three types based on the protrusion degree of the infraorbital nerve from the maxillary roof into the sinus...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492414/comparison-the-pain-relief-of-amitriptyline-mouthwash-with-benzydamine-in-oral-mucositis
#7
Shahla Kakoei, Abbas Pardakhty, Maryam-Al-Sadat Hashemipour, Hasan Larizadeh, Behjat Kalantari, Elaheh Tahmasebi
Statement of the Problem: A significant proportion of patients undergoing chemotherapy or radiotherapy suffer from mucositis. The first symptom of oral mucositis is pain. Severe pain, burning sensation, and discomfort in the oral cavity make it difficult to continue treatment and even continue living in these patients. Purpose: The aim of this study was to evaluate and compare the effect of amitriptyline mouthwash (in two forms of simple and niosomal) as a local anesthetic agent with benzydamine HCl mouthwash in oral mucositis after radiotherapy or chemotherapy...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492413/efficiency-of-castor-oil-as-a-storage-medium-for-avulsed-teeth-in-maintaining-the-viability-of-periodontal-ligament-cells
#8
Mohammadreza Nabavizadeh, Abbas Abbaszadegan, Afrooz Khodabakhsi, Shamseddin Ahzan, Davood Mehrabani
Statement of the Problem: Researchers always seek a new storage medium for avulsed teeth. Castor oil is a vegetable oil with several advantages such as antimicrobial and antioxidant properties, low toxicity, and glutathione preservation capability, low cost, and high availability. Purpose: The purpose of this study was to evaluate and compare the capacity of castor oil as a new storage medium in preserving the viability of periodontal ligament (PDL) cells compared to Hank's balanced salt solution (HBSS) and milk...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492412/the-impact-of-calcium-hydroxide-on-the-osteoinductive-capacity-of-demineralized-freeze-dried-bone-allograft-an-in-vitro-study
#9
Hengameh Khosropanah, Nazila Lashkarizadeh, Maryam Ayatollahi, Maryam Kaviani, Zohreh Mostafavipour
Statement of the Problem: A great challenge in periodontal therapy is the regeneration enhancement of osseous defects through applying osteoinductive materials. Demineralized freeze-dried bone allograft (DFDBA) has already been introduced as an allograft with osteoconductive and variable osteoinductive properties. Calcium hydroxide [Ca(OH)2 ] is an available well-known material in dentistry, which induces hard tissue formation. Purpose: This study evaluated the efficiency of combination of DFDBA and Ca(OH)2 in improving the quality of osteoinduction of DFDBA...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492411/cone-beam-ct-study-of-temporal-crest-canal
#10
Mahvash Hasani, Shoaleh Shahidi, Shahrzad Alsadat Shamszade
Statement of the Problem: It is crucial for clinicians to be certain about the location of mandibular canal and determine any anatomical variants relevant to it. The temporal crest canal (TCC) is a rare anatomical variant of mandibular canal that lack of awareness about its presence can complicate surgical procedures. Purpose: This study investigated the anatomical characteristics and prevalence of the TCC using CBCT. Materials and Method: This descriptive cross-section study evaluated 327 CBCTs (654 sides) from all the patients with various problems...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492410/low-lymphatic-vessel-density-correlates-with-lymph-node-metastasis-in-oral-squamous-cell-carcinoma
#11
Axita Dedhia, Suchitra Gosavi, Balkrishna Sharma, Radhika Pagey
Statement of the Problem: Regional lymph nodes are the nodes draining lymph from region around the tumor and presence of metastatic tumor in regional lymph nodes is the most important prognostic factor for malignant tumors of epithelial origin. Lymphangiogenesis is associated with an increased incidence of regional lymph nodes metastasis and is possibly an essential step for metastasis. Tumor cells secrete lymphangiogenic cytokines, which results in formation of lymphatic vessels within and around the tumor and act as portals for tumor spread...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29492409/the-effect-of-cuo-nanoparticles-on-antimicrobial-effects-and-shear-bond-strength-of-orthodontic-adhesives
#12
Mohammad Hossein Toodehzaeim, Hengameh Zandi, Hamidreza Meshkani, Azadeh Hosseinzadeh Firouzabadi
Statement of the Problem: Orthodontic appliances facilitate microbial plaque accumulation and increase the chance of white spot lesions. There is a need for new plaque control methods independent of patient's cooperation. Purpose: The aim of this study was to determine the effects of incorporating copper oxide (CuO) nanoparticles on antimicrobial properties and bond strength of orthodontic adhesive. Materials and Method: CuO nanoparticles were added to the composite transbond XT at concentrations of 0...
March 2018: Journal of Dentistry
https://www.readbyqxmd.com/read/29201976/palisaded-encapsulated-solitary-circumscribed-neuroma-of-the-buccal-mucosa-a-rare-case
#13
Saede Atarbashi-Moghadam, Ali Lotfi, Saman Salehi Zalani, Sepideh Mokhtari
The rarity of oral soft tissue spindle cell tumors combined with overlapping microscopic patterns can make challenges in their diagnosis and treatment. Oral cavity palisaded encapsulated neuroma is an uncommon lesion which occurs often on the hard palate. It is essential for oral pathologists to be familiar with its histopathology of this lesion is essential since many lesions are probably diagnosed microscopically as neurofibroma or schwannoma. Here, we report a case of oral palisaded encapsulated (solitary circumscribed) neuroma in an unusual site...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29201975/angulated-implants-for-fabrication-of-implant-supported-fixed-partial-denture-in-the-maxilla
#14
Nicholas Egbert, Swati Ahuja, Audrey Selecman, Russell Wicks
Until recently, angled abutments have been the only solution to correcting the trajectory of the emergence profile of labially inclined implants in the maxilla. However, the clinical implications of angled abutments reveal several shortcomings. Newly designed angulated implants with a 12-degree restorative platform angulation are an alternative to angled abutments. The purpose of this article was to report a case utilizing new angulated implants (Co-axis, Keystone dental, Burlington, MA, USA) in the premaxilla thereby facilitating fabrication of a multi-unit implant retained fixed dental prosthesis...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29201974/the-risk-factors-in-early-failure-of-dental-implants-a-retrospective-study
#15
Hassan Mohajerani, Roozbeh Roozbayani, Shahram Taherian, Reza Tabrizi
Statement of the Problem: Despite the low failure rate of dental implants, recognition of the risk factors can enhance the predictability of failure. Purpose: The aim of this study was to evaluate the risk factors for early implant failure. Materials and Method: This retrospective cohort study was conducted on two groups of patients, the patients with a failed implant before loading and those without a failed implant. Age, gender, implant type, implant surface, implant length, bone type, type of surgery (one- or two-stage) and immediate (fresh socket) or delayed placement of implant were the variables to be assessed in this study...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29201973/the-accuracy-of-four-impression-making-techniques-in-angulated-implants-based-on-vertical-gap
#16
Abolfazl Saboury, Hamid Neshandar Asli, Zahra Dalili Kajan
Statement of the Problem: Precision of the impression taken from implant positions significantly determines accurate fit of implant-supported prostheses. An imprecise impression may produce prosthesis misfit. Purpose: This study aimed to evaluate the accuracy of four impression-making techniques for angulated implants by stereomicroscope through measuring the vertical marginal gaps between the cemented metal framework and the implant analog. Materials and Method: A definitive cast with two 15° mesially angulated implants served as the standard reference for making all the impressions and later for accuracy evaluation...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29201972/a-survey-of-knowledge-attitude-and-practice-of-iranian-dentists-and-pedodontists-in-relation-to-child-abuse
#17
Fatemeh Jahanimoghadam, Mahsa Kalantari, Azadeh Horri, Habibeh Ahmadipour, Ehsan Pourmorteza
Statement of the Problem: Since almost half of the child abuse cases affect the head and neck region, dentists have an important role in the diagnosis and report of oral and dental aspects of child abuse cases. Purpose: The objective of the current study was to evaluate the knowledge, attitude and practice of the general dentists and pedodontists regarding child abuse and child neglect. Materials and Method: This cross-sectional study was carried out on the participants of the 12th congress of pedodontists of Iran...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29201971/the-effect-of-autoclave-sterilization-on-resistance-to-cyclic-fatigue-of-hero-endodontic-file-642-6-at-two-artificial-curvature
#18
Masoud Khabiri, Maziar Ebrahimi, Mohammad Reza Saei
Statement of the Problem: File fracture can interfere with cleaning and shaping of the canal and compromise periradicular healing. Autoclave sterilization may prone the files to fracture. Purpose: The purpose of the present study was to determine the effect of autoclave sterilization on the cyclic fatigue resistance of Hero642 rotary instrument in two curvatures of 45 and 60 degrees. Materials and Method: For this experimental in-vitro study, 90 Nickel-Titanium HERO 642 rotary files #30 with 0...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29201970/comparison-of-the-marginal-bone-loss-in-one-stage-versus-two-stage-implant-surgery
#19
Rasoul Gheisari, Hesamuddin Eatemadi, Akram Alavian
Statement of the Problem: Dental implant is one of the best choices for reconstruction of aesthetic and function. High success rate of these treatments are related to some considerations such as case selection, implant system selection and surgical methods. One-stage or two-stage surgical approaches are routine surgical methods in dental implant treatments. The minimum rate of bone loss around fixtures is the most important criteria for evaluation of implant treatment success that can be affected by different methods of surgery...
December 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29201969/the-effect-of-disinfection-with-chlorhexidine-on-the-shear-bond-strength-of-equia-resin-modified-glass-ionomer-cement-to-dentin-in-permanent-teeth-after-two-thermocycling-protocols
#20
Yasmin Sheikh Hasani, Mehrsa Paryab, Aida Saffarpour, Mohammad Javad Kharazifard, Mehdi Shahrabi
Statement of the Problem: There are some concerns regarding the effect of chlorhexidine (CHX) applied for cavity disinfection on the bond strength of adhesive restorations to dentin. Purpose: This study sought to assess the effect of CHX on the shear bond strength (SBS) of Equia resin-modified glass ionomer cement (RMGIC) to dentin in permanent teeth. Materials and Method: In this experimental study, the buccal surface of 84 freshly extracted human premolars was ground to expose the flat dentin...
December 2017: Journal of Dentistry
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