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Dr. Nora Lahmadi

As the most recent addition to our team of professionals, we are pleased to introduce Dr Nora Lahmadi. This highly motivated and cheerful dentist will be graduating from the Université Dentaire de Nancy in France in 2019. After four years of practice in France, our humble Dr. Lahmadi arrives in Montreal and joins Dr. Criton with the goal of growing the Signature Dentaire Montréal-Rosemont clinic. Dr. Nora's approach is gentle and non-judgmental. She values open communication with her patients and makes sure they understand the treatments they are considering. She considers the practice of dentistry to be teamwork with her patients, and it is essential for Dr Lahmadi that patients feel considered and involved in the progress of the treatments they receive.

We invite you to come and meet this pleasant dentist who will make your goals her own!

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Let your patients benefit from a stress-free procedure without the discomfort of sedation!
Your anxious, phobic or gag reflex patients will be treated in a safe manner, with high technology equipment.

Dr. Nathalie Criton, ACLS
certified dentist in intravenous conscious sedation

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Intravenous conscious sedation

Fighting against anxiety during dental treatments through conscious sedation?

Dental treatments can provoke anxiety amongst many patients! It can hinder you from receiving the care that you need from your dentist. This is why intravenous sedation is an excellent method to be treated in comfort and without worry. 

Medicinal conscious sedation means that all dental care performed will be done without any stress. Conscious sedation manages stress, anxieties, phobias, nauseous reflexes, and certain physical and mental deficiencies. Indeed, your level of consciousness is decreased enough that you no longer remember the treatment.  

Who is conscious sedation for? 

Intravenous conscious sedation suits the majority of patients. However, there are situations where it is not suitable:

  • Pregnancy
  • Lung problems
  • Severe obesity 
  • Severe pharmacoligical allergies

How does conscious sedation work?

Conscious sedation consists of administering a medication intravenously:

  • Midazolam : changes the perception of time, procures huge nervous relaxation and induces amnesia of the operation.

We equally offer pharmological support which can include narcotics, anti-inflammatories, and antibiotics according to the condition andt needs of the patient. All of these medications will be taken orally. 

Our dental surgeon is trained to safely perform intravenous sedation following the training and the medical knowledge she possesses that she received at Trinity College in Dublin, Ireland and refresher courses she does every two years of her ACLS in accordance with the request of the ODQ. 

If you are anxious with the idea of a dental tratment, an entire team will take car of you from the beggining till the end of the treatment. This team is dedicated to your security and well-being.

An initial consultation to accompany you before undergoing conscious sedation?

Before any treatment needing sedation, you must come for a consultation in order to best prepare you for the day of treatment.

During the consultation, the dentist will take charge of:

  • informing you of the precautions to take before the treatment
  • taking vital signs such as saturation, pulse, and pressure 
  • perform a specific or complete dental exam with X-rays is necessary 
  • discuss and take charge of your medication needs, your questions, and medical requirements 
  • providing you with treatment plans with consents and eventual prescriptions 


How to prepare before the dental treatment

  • Eat lightly 90 minutes before the operation.
  • Dress comfortably, prioritizing short sleeves
  • No nail polish
  • You have to be accompanied by an adult responsible for the appointment

Proceedings of the dental treatment under conscious sedation

Before the beggining of the operation, we put in place an IV in which the medications will be administered. In a few minutes, the sedation will start to take effect.

The sedation will enable you to stay conscious during the whole treatment and to respond to the commands of the dentist.


Après le traitement dentaire

Once the dental treatment is done, we will verbally and in writing transmit all that is necessary in order to have optimal convalescence:

  • Post-operational instructions
  • Medical prescriptions
  • Your specific needs

You will be discharged to the person you chose. This person must watch over you for 24 hours and will be legally responsible of you.

After a few hours and after, the effects of the medication administered by dentist will disappear.

A post-operation appointment will be proposed to you 7 to 14 days after the treatment. A telephone assistance will also be available for you at all times!


Do you have some difficulty in managing your anxiety at the dentist? Do you suffer from nauseosness? Is local anesthesia not efficient? Contact us now in order to know more about conscious sedation and fill-in the form to make an appointment!

To refer a patient to us or to make an appointment for sedation, fill out the form by clicking on the following button:





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Opening hours

Monday 8:00 A.M - 5:30 P.M
Tuesday 7:30 A.M - 5 P.M
Wednesday 7:30 A.M - 5 P.M
Thursday 7:30 A.M - 5 P.M
Friday 7:30 A.M - 3 P.M

Signature Dentaire

5020, rue Bellechasse
Montreal (Quebec) H1T 2A2

Phone : 514 899-9991
Toll Free : 1 877 336-8763

Fax: 514 899-7723

Intravenous conscious sedation

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