NHTI is firmly committed to developing and delivering continuing education programs that will enhance the professional lives of dental assistants and dental hygienists. Our courses feature a state-of-the-art clinic, highly qualified and experienced faculty, and continuing education approved by N.H. Board of Dental Examiners.

Click here for NHTI’s Certified Public Health Dental Hygienist (CPHDH) program and course listings.

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Special Seminar: SDF for the Dental Practice

Online: Tuesday, September 22, 6pm - 8pm
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Current Dental Class Schedule and Registration

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Course lectures for this introductory study of the concepts and techniques of delivering intraoral anesthesia are provided online and coordinated with clinical practice. Emphasis is on the prediction and prevention of medical complications.

Curriculum includes head and neck anatomy, armamentarium, pharmacology, neurophysiology, patient evaluation and management, record keeping and risk management. The goal is to safely select and administer adequate local anesthesia for use in painless periodontal treatment.

Course consists of 24 lecture hours and 21.5 clinical hours in which students practice injection techniques on partners under the supervision of NH-licensed dentists and qualified dental hygienists.

Upon successful completion of the course and the ADEX exam and obtaining NH permit, hygienists will be qualified to administer local anesthesia according to NH law.

CEUs: 48

Required textbook: Local Anesthesia for the Dental Professional, 2nd edition, 2015, by Bassett, DiMarco & Naughton, ISBN- 978-0-13-307771-1

Prerequisites and required documents – email to NHTIbtc@ccsnh.edu

PPE requirements: N95 face mask, face shield, gloves, scrubs, and a fluid resistant lab jacket

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This course has been designed to provide participants with didactic and clinical continuing education to be eligible to administer nitrous oxide (N2O/O2) in the state of New Hampshire.  The course will cover the history of nitrous oxide, neurophysiology of pain and pain control, patient assessment including medical and dental indications and contraindications, anatomy and physiology, pharmacology of nitrous oxide, emergency prevention and management, nitrous oxide armamentarium including safe assembly and handling of gas tanks, masks, tubing, scavenger and monitoring equipment, techniques, record keeping, and regulatory/legal issues.

If a course participant is seeking certification in nitrous oxide administration in a state other than NH, it is the responsibility of that participant to contact the appropriate state board and gain knowledge of and meet the requirements for nitrous oxide administration in that state.

Hours:  20 

Prerequisites & Forms:

Text Required:

Handbook of Nitrous Oxide and Oxygen Sedation , 4th  Edition, by Morris S. Clark, DDS, FACD and Ann Brunick , RDH, M.S., 2015

PPE Requirements:

Materials Required for Clinical Sessions include:

  • Clinical attire, including scrubs and closed toe shoes
  • Face masks, safety glasses and non-latex gloves.

Part 1:  Online Didactic Instruction (8 hours- Self-study)

The online course will run for 3 weeks.   It has been estimated that participants will spend a minimum of 4-6 hours each week reading, reviewing material, and completing assignments. However, each participant learns differently, therefore, the total number of hours for the online didactic instruction will vary by participant.

There are no required times to log in for this course.   All didactic instruction will be completed online and will be accessible 24 hours a day seven days a week.  The lecture material consists of 3 modules each with a power point, quiz and corresponding assignments.  There is a 50 question final exam that must be completed online before the clinical day. Students must pass with a 75% or better. 

Part II:  Clinical Session (6 hours at NHTI)

There is one face-to-face clinical session to prepare participants for certification in the administration of nitrous oxide. This portion of the course includes 6 hours of laboratory/clinical instruction. Participants will review nitrous oxide equipment, watch a DVD ” Emergency Management of Complications”, and administer N2O/O2 .  There is a 6:1 participant to instructor ratio during the clinical session. The clinical session will be held at NHTI in the Dental Hygiene Clinic, located in MacRury Hall.

Participation in the nitrous oxide/oxygen program includes the experience of administering as well as receiving nitrous oxide.  If for any medical reason a participant cannot receive N2O/O2, a medical note must be turned in with the registration.  The participant MUST contact the coordinator by the second week of the course through email. The participant is then responsible for finding a substitute.  The substitute will have to be approved by the course coordinator and complete the appropriate paper work prior to clinical sessions.

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Participants will learn indications and contraindications to sealants and ITR placement and will have an opportunity to place glass ionomer pit and fissure sealants, as well as practice ITR placement on teeth. Evidence supporting this technique will be presented.

CEUs: 10 (4 Didactic/6 Lab)

Prerequisites and required documents – email to NHTIbtc@ccsnh.edu

  • Active RDH license  

PPE requirements: face mask, safety glasses or safety shield, gloves, scrubs, and lab jacket

Registration for Dental Courses

Following the guidelines of the NH Board of Dental Examiners, this course is designed to provide participating dental assistants with the proper background knowledge and clinical experience in coronal polishing to enable them to perform this procedure in a practice setting.

Prerequisites and required documentation – email to NHTIbtc@ccsnh.edu 

PPE requirements: Lab coat, safety glasses, 2 face masks, N95 mask

Participants must provide a patient for the second clinical session, and treat 5 patients under the supervision of a NH dentist between clinical sessions.  PENDING COVID RESTRICTIONS.

Registration for Dental Courses

Hours: 2.5

Per Den 403.03 – Starting April 1, 2020, at least 2 CEUs shall be earned in Medical Emergency Training

Lecture and practice drills will focus on the prevention and management of medical emergencies in the dental office. Common systemic conditions, etiologies of disease, and risk assessment will be discussed.

Registration for Dental Courses

Lecture and clinical sessions provide an in-depth study of dental sealants. Upon satisfactory completion of the course, the participant will be qualified to legally apply sealants in N.H. The student will take the didactic, place sealants on extracted teeth and models, and place sealants under the supervision of their dentist.

Prerequisites, required documents, and materialsemail to NHTIbtc@ccsnh.edu

  • ADA Graduate Dental Assistant or proof of completion of POI and ICP courses

Materials required:

  • Lab coat
  • Safety glasses
  • Two extracted teeth
  • Patient requiring sealants on at least four occlusal surfaces

PPE requirements: 2 surgical masks, N95, face shield, gloves, scrubs, and lab jacket

This course provides an overview of what the evidence-based dentistry approach has to offer clinicians striving to best meet their patients’ needs and preferences. Working in the classroom and the computer lab, participants will gain experience in quickly finding evidence relevant to a practice need and appraising that evidence

CEUs:  7

This required course reviews infection control procedures through lecture and clinical activities. Dental hygienists learn the latest protocols for proper asepsis in non-traditional settings and are strongly encouraged to bring a portable dental unit. Clinic attire, safety glasses required.  

CEUs: 4

Registration for Dental Courses

Hours: 4

With online and hands-on components, course topics include barrier techniques, limiting contamination, hand washing, handling of sharps, sterilization, disinfection, and disposal of waste materials. 

  • Course not designed to meet annual OSHA training requirement. 
  • Course not required for dental assistant graduates from ADA accredited programs.

PPE requirements:  2 surgical masks, N95, safety shield, gloves, scrubs, and lab jacket

Registration for Dental Courses

This course provides infection control guidelines and recommendations for the dental office. The course is based on the CDC infection and prevention guidelines, and includes information on disinfection and sterilization, products, and asepsis protocols. This course fulfills the NH dental infection control requirements for certification and license renewal.

 CEU:  3

Hours: 6

This course meets the requirements established by the N.H. Board of Dental Examiners for dental assistants and dental hygienists. Topics: prescription/non-prescription products and safety considerations.

Prerequisites and required documents:

This course addresses systemic conditions and diseases with emphasis on dental hygiene treatment planning, the management of dental and medical emergencies in alternative dental settings and includes a pharmacology review for common disease states.

CEUs: 6

This required class meets once as a group, followed by individual completion of required online activities. Topics discussed assist public health dental hygienists to understand and comply with legal requirements to properly handle patient medical records. Key concepts of the Health Insurance Portability and Accountability Act (HIPAA), the Family Educational Rights and Privacy Act (FERPA), and NH law regarding client abuse are included. Participants draft a Privacy Impact Assessment (PIA) and are required to complete learning activities prior to class end date.

CEUs: 8

Registration for Dental Courses

Hours: 6

This course prepares dental assistants and dental hygienists to monitor nitrous oxide use during dental procedures. Upon successful completion of the course, the participant will meet the qualifications stipulated by the N.H. Board of Dental Examiners.

Prerequisites and required documentation – email to NHTIbtc@ccsnh.edu

  • RDH, ADA Graduate Dental Assistant or proof of completion of POI and ICP courses

PPE Requirements: face mask

Registration for Dental Courses

Hours: 8

This course qualifies the orthodontic dental assistant to perform those expanded orthodontic duties designated by the N.H. Board of Dental Examiners.

Prerequisites and required forms – email to NHTIbtc@ccsnh.edu 

  • RDH OR ADA Graduate Dental Assistant or proof of completion of POI and ICP courses

PPE requirements: 3-4 surgical masks, gloves, face shields, scrubs, and lab jackets


This course reviews OSHA laws and CDC guidelines including the Bloodborne Pathogen Standard, Chemical Hazard Standard, Infection control techniques, annual employee training and ways to prevent cross contamination in the dental office.

CEUs: 3.5

PPE requirements: Surgical masks, scrubs, and lab coat

This course reviews the new Periodontal Classification System established by the American Academy of Periodontology (AAP) and the European Federation of Periodontology (EFP). The new classification involves some significant changes, including a new system for staging and grading periodontitis, the modification and/or elimination of certain concepts and, introduces a classification for peri-implant diseases and conditions.

Topics covered include the following:

  • The main categories within the new classification system
  • Differences between the current classification and the previous classification system
  • Rationale and evidence to support the new staging and grading, and how to classify your patients.

This course will review content in lecture format with clinical discussion and case studies for practical application.


Registration for Dental Courses

Hours: 4

This covers the Introduction to Dental Assisting in 302.06. With online and hands-on components, this course prepares dental assistants to perform a preliminary oral inspection on patients and includes taking medical/dental histories, obtaining/reading vital signs, basic oral anatomy and terminology, and dental charting. 

Course not required for dental assistant graduates from ADA accredited programs; course not appropriate for RDH.

Prerequisites and required documentation

Required materials

  • Manual blood pressure cuff
  • Stethoscope

PPE requirements: Face masks, safety glasses, scrubs, lab coat, and gloves

Registration for Dental Courses

Online portion:  Runs over the course of 2 months.
Clinical portion (NHTI Campus): 4 days – 8:30 a.m.-5:30 p.m.

Online lectures and learning activities are coordinated with lab practice to develop dental radiographic techniques. Students are required to schedule two clients. Techniques covered include: digital radiography, processing, mounting and evaluating films. Emphasis placed on client and operator protection, exposure and processing errors, asepsis protocol, radiographic techniques and equipment function. Following this course, passing of RHS portion of DANB exam is required according to NH law.

This course does not meet the radiology course requirements for the NHTI Dental Assisting or Dental Hygiene programs.

Textbook: Dental Radiography: Principles and Techniques, Iannucci Howerton, 5th Edition, ISBN: 978-0-323-29742-4


  1. 400 Hours of Work Experience verified by submitting EMPLOYMENT VERIFICATION FORM 
  2. Completion of POI & ICP Courses –  Send certificates to nhtibtc@ccsnh.edu

Required PPE:  Students need to bring surgical masks, gloves, N95 for patient care and working on each other, face shield, safety glasses scrubs, and lab coat.

Registration for Dental Courses

Hours: 8

This training qualifies the dental assistant, according to the N.H. Board of Dental Examiners’ regulations. The focus is on techniques and materials used in temporary fabrication, finishing margins, and duplicating tooth anatomy. Participants will create temporary crowns and bridges on typodonts only.

Prerequisites and required documents – email to NHTIbtc@ccsnh.edu

  • ADA Graduate Dental Assistant or Completion of the POI and ICP courses at NHTI

Required Materials:

  • Two models of the same tooth, one before the prep was done, and one after the prep was done. (Both models need to have the soft tissue around the prep.)
  • Impression material and temporary crown material used in your office for 5-6 impressions. No impression material will be provided.

PPE requirements: 2 surgical masks, face shield gloves, scrubs, and a lab jacket

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