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16th International Conference of ODOAN, Dharan, Nepal

CLICK HERE FOR REGISTRATION TO MAIN CONFERENCE CLICK HERE TO REGISTER FOR PRECONFERENCE WORKSHOPS   Calling all orthodontists, residents, and dental pros! The 16th International Orthodontic Conference of ODOAN is landing in Dharan, Nepal on Nov 15, 2025 – your ultimate hub for cutting-edge insights, networking, and innovation in orthodontics! 🌟 Don't miss the exclusive Pre-Conference Workshops on Nov 14: Workshop 1: In-Office Aligners with Dr. Abhishek Gupta (Master digital smiles!) Workshop 2: Self-Ligation & TADs for Complex Malocclusions with Dr. Abhishek Ghosh (Tackle tough cases like a pro!) Early Bird rates extended till Oct 15 – register NOW and save big! PG residents: As low as NPR 7500 for main + NPR 2000 for both workshops. International? Just $90-100 USD entry! After October 15, $120 only. Join 100s of global experts, ignite your practice, and explore Nepal's vibes. Spots filling fast – secure yours today! BANK DETAILS FOR PAYMENT OF REGISTRATION FEES CLICK HERE...
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The spontaneous production of an electric current resulting from two dissimilar metals in the oral cavity is called:

The spontaneous production of an electric current resulting from two dissimilar metals in the oral cavity is called: A. Nuclear reaction B. Galvanic action C. Precipitation reaction D. Thermodynamics The correct answer is  B. Galvanic action Galvanic action, also known as oral galvanism, occurs when two dissimilar metals in the oral cavity contact saliva (an electrolyte), forming a battery-like setup that generates a spontaneous electric current. This can cause symptoms like metallic taste, pain, or tissue irritation. Studies and dental resources confirm this electrochemical process is specific to bimetallic interactions in the mouth, distinguishing it from unrelated options: nuclear reactions (subatomic), precipitation (ion formation), and thermodynamics (energy principles).

Which of the following materials has been shown to stimulate reparative dentine formation most effectively when applied to the pulpal wall of a very deep cavity?

 # Which of the following materials has been shown to stimulate reparative dentine formation most effectively when applied to the pulpal wall of a very deep cavity? A. Copalite varnish B. Calcium hydroxide preparation C. Zinc phosphate cement D. Anhydrous glass ionomer cement The correct answer is  B. Calcium hydroxide preparation Calcium hydroxide has been established as the gold standard for stimulating reparative dentin formation in deep cavities near the pulp. It promotes odontoblast differentiation and dentin bridge formation by releasing calcium ions, which enhance fibronectin expression and mineralization. Studies, including clinical reviews, show success rates of around 83% for indirect pulp capping with calcium hydroxide. In comparison: A. Copalite varnish : Acts as a protective liner to reduce irritation but does not induce reparative dentin. C. Zinc phosphate cement : Provides thermal insulation as a base but lacks bioactive properties for dentin stimulation. ...

Dr. Raman Dhungel, BDS (BPKIHS), MDS Resident Department of Orthodontics, BPKIHS Dharan Contact Number

If you need to arrange / reschedule any appointment with Dr. Raman Dhungel,  BDS (BPKIHS), MDS Resident Department of Orthodontics, BPKIHS Dharan, then you can message on Whatsapp (+9779803027654) or call on +9779803027654/+9779849510059. Call only when absolutely necessary and preferably at 6:00 PM to 8:00 PM. 

Difference in the amount of space needed for the accommodation of the incisors and amount of space available for them is known as:

Difference in the amount of space needed for the accommodation of the incisors and amount of space available for them is known as: A. Primate space B. Leeway Space of Nance C. Anthropoid space D. Incisal liability D. Incisal liability Incisal liability, also known as incisor liability, describes the space discrepancy in the mixed dentition phase where the permanent incisors require more mesiodistal width (typically 7 mm in the maxillary arch and 5 mm in the mandibular arch) than the primary incisors they replace, creating a potential crowding issue that must be accommodated by factors like interdental spacing, arch perimeter changes, or leeway space. This is distinct from primate space (A, developmental space distal to the lateral incisor), leeway space of Nance (B, difference between deciduous and permanent molars/canines), and anthropoid space (C, a less common term sometimes used interchangeably with primate space in non-human primates). 

Type of crowding that is genetically determined and is caused by disproportionately sized teeth and jaws:

Type of crowding that is genetically determined and is caused by disproportionately sized teeth and jaws: A. Primary crowding B. Secondary crowding C. Tertiary crowding D. Environmental crowding The correct answer is A. Primary crowding.  Primary crowding refers to a type of dental crowding caused by a genetic discrepancy in tooth and jaw sizes, such as larger teeth relative to the jaw, leading to misalignment. This contrasts with secondary crowding, which results from environmental factors like early tooth loss, and tertiary crowding, which involves late-stage incisor irregularities. Environmental crowding isn't a standard classification but aligns with secondary causes.

Which of the following is the least biocompatible?

Which of the following is the least biocompatible? A. TMA B. Elgiloy C. Stainless steel D. Cu-NiTi The correct answer is B. Elgiloy. Elgiloy (a cobalt-chromium-nickel alloy) is the least biocompatible among the options due to its higher nickel content (14-16%) compared to stainless steel (8%), leading to greater nickel and chromium ion release in simulated oral environments. Studies show it induces significant neurotoxicity via necrosis, elevated oxidative stress, and higher cytotoxicity (2.7-fold increase in dead cells) relative to stainless steel (apoptosis, 1.7-fold dead cells), TMA (variable but generally low ion release and non-toxic), and Cu-NiTi (lower ion release and minimal cytotoxicity). This increases risks of allergic reactions and tissue irritation in orthodontic use.