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Intrusion of tooth is resisted by:

 # Intrusion of tooth is resisted by:
A. Apical and interradicular fibers
B. Oblique and horizontal fibers
C. Alveolar crest and oblique fibers
D. All Periodontal fibers


The correct answer is C. Alveolar crest and oblique fibers.

The principal fibers of periodontal ligament are arranged in six groups and are named according to their
location and direction of attachment. 

1. Transseptal group
Location: These fibers run into the interproximal space over the crest of alveolar bone and get inserted in the cementum of neighboring tooth.
Function: They have the innate capacity to reconstruct themselves in periodontal disease even there is destruction of the alveolar bone. This unique property of fibers is responsible for returning teeth to their original state after orthodontic therapy.

2. Alveolar crest group (apico-oblique)
Location: Cervical root to alveolar crest of alveolar bone proper
Function: Prevent extrusion and lateral tooth movements

3. Horizontal group
Location: Mid root to adjacent bone proper
Function: Resists horizontal forces

4. Oblique group (coronal-oblique)
Location: Apical one-third of root to adjacent bone proper
Function: Resists vertical masticatory stresses and convert them into tension on alveolar bone

5. Apical group
Location: Apex of root to fundic proper
Function: Prevent tooth tipping, resist luxation and protect neurovascular supply to the tooth

6. Interradicular group
Location: Between roots to alveolar bone proper
Function: Prevent luxation, torquing and tooth tipping



The Unsung Hero of Dentistry: Why Dental Practice Management Software is Essential

 The world of dentistry is a constant hustle. Between patient appointments, procedures, and administrative tasks, it's easy for crucial aspects of running a smooth practice to fall by the wayside. This is where dental practice management software (PMS) steps in as the unsung hero, streamlining operations and boosting efficiency.

Why is Dental Practice Management Important?

Imagine juggling appointment scheduling, billing, insurance verification, patient records, and inventory management – all manually. It would be a logistical nightmare. Dental practice management software automates these tasks, freeing up valuable time for dentists and staff to focus on what matters most: patient care.

Here's how a PMS empowers your practice:

  • Enhanced Patient Experience: Streamlined scheduling allows patients to book appointments online, reducing wait times and improving convenience. Electronic health records (EHR) ensure accurate and readily available patient information. Secure communication tools within the PMS facilitate appointment reminders and follow-up communication.
  • Improved Efficiency: Tasks like scheduling, billing, and insurance verification are automated, saving valuable time and reducing errors. Staff can focus on providing excellent patient care without getting bogged down in paperwork.
  • Boosted Revenue: Timely and accurate billing with integrated insurance processing ensures you get paid faster. Automated appointment reminders minimize missed appointments and lost revenue. Efficient inventory management helps avoid stockouts and unnecessary purchases.
  • Data-driven Decision Making: PMS software provides valuable reports and insights on practice performance. Analyze appointment trends, track patient demographics, and identify areas for improvement.
  • Compliance with Regulations: Secure storage of patient data and streamlined documentation processes help your practice stay compliant with HIPAA and other regulations.

Popular Dental Practice Management Software Options

With a plethora of PMS options available, choosing the right one for your practice depends on several factors, including practice size, budget, and specific needs. Here's a glimpse into some of the most commonly used dental practice management software solutions:

  • Dentrix: A comprehensive solution catering to practices of all sizes, Dentrix offers a robust set of features including scheduling, billing, charting, reporting, and patient engagement tools. It also integrates with various third-party applications.
  • Eaglesoft: Renowned for its user-friendliness and focus on clinical workflows, Eaglesoft streamlines patient charting, treatment planning, and practice management. It caters well to smaller and mid-sized practices.
  • CareStack: Cloud-based and scalable, CareStack offers a modern platform with a focus on patient engagement and practice analytics. It is particularly well-suited for practices looking for a flexible and customizable solution.
  • Open Dental: An open-source option gaining traction, Open Dental is a cost-effective solution that offers a decent feature set. However, it requires some technical expertise for setup and customization.
  • Dentiflow: Another cloud-based platform, Dentiflow caters specifically to dental practices. It offers modules for scheduling, charting, billing, and patient communication, along with features like online appointment booking and mobile app access.

Choosing the Right Dental PMS

Before diving in, consider these factors:

  • Practice Size and Needs: A solo practitioner might not require the same level of functionality as a large group practice. Identify your specific needs and budget accordingly.
  • Ease of Use: User-friendliness for both dentists and staff is crucial. Consider user interfaces, training options, and technical support offered by the software provider.
  • Scalability: Will your practice grow in the future? Choose software that scales with your needs.
  • Integration with Existing Systems: Ensure the PMS integrates seamlessly with your existing dental imaging software, EHR systems, and lab management tools.
  • Security: Data security is paramount. Look for HIPAA-compliant software with robust security features.


Investing in a Dental Practice Management Software is an investment in your practice's future. By automating tasks, improving efficiency, and boosting patient satisfaction, a PMS can be the key to unlocking the full potential of your dental practice.

The term which indicate teeth or other maxillary structures too low down in the face is called:

 # The term which indicate teeth or other maxillary structures too low down in the face is called:
A. Attraction
B. Abstraction
C. Distraction
D. Protraction


The correct answer is B. Abstraction.

When the dental arch is closer to the Frankfort plane than normal, it is called attraction. When the dental arch is farther from the Frankfort horizontal plane (i.e. lower than normal) it is called abstraction.