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David Momtaheni, DMD

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David Momtaheni, DMD

Dr. David Momtaheni provides a comprehensive oral and maxillofacial reconstruction and rehabilitation. He has over 25 years of experience in both disciplines.

Dr. David Momtaheni is one of sixteen oral and maxillofacial surgeons and oral maxillofacial pathologists in the US. He is an expert in facial reconstructive surgery, and is a pioneer in dental implantology. Not only does Dr. Momtaheni work at his private practice, he also teaches at Columbia University and Beth Israel Medical Center. He is a clinical professor at Columbia University College of Dental Medicine and a member of the Board of Advisors. The office provides the full scope of oral surgery procedures including the following:

Orthognathic Surgery
Extractions (Including wisdom teeth)
Surgical and Non-Surgical TMJ Treatment
Dental Implantology
Oral Pathology
Sleep Apnea
Endodontic Surgery
Laser Surgery
Facial Trauma
Facial Reconstruction
Cosmetic Dentistry
Invisalign & Comprehensive Oral Care

Dr. Momtaheni believes that his patient's comfort and trust is the number one priority. In order to provide the best quality care possible, his office is equipped with the latest state of the art technology. His office is located in the heart of Manhattan in Rockefeller Center at 630 5th Ave Suite 1868. Please do not hesitate to give us a call for any additional information or questions at (212) 969-9133.

03/23/2025

Finally, after office renovations and a lecture for Tufts Alumni Association on New Year’s Eve, I was able to celebrate Nowruz just 24 hours later by making a traditional and my favourite Persian dish, Chelo Kabbab, Happy Nowruz to all.
It is appropriate to honour Omar Khayyam , the renowned Persian poet, mathematician, and astronomer, who made a significant contribution to Nowruz, the Persian New Year, through his work on calendar reform. In the 11th century, he developed the Jalali calendar, which is more accurate than the Gregorian calendar used today.
The Jalali calendar forms the basis of Iran’s modern solar Hijri calendar, which determines the exact timing of Nowruz based on astronomical calculations. Khayyam’s precise calculations ensured that Nowruz falls on the spring equinox (around March 20-21), maintaining its alignment with nature and the changing seasons.
Beyond his scientific contributions, Khayyam’s poetry also reflects themes of renewal, time, and the fleeting nature of life—ideas deeply intertwined with the spirit of Nowruz.

03/21/2025

Fifty million Americans suffer from Sleep-Disordered Breathing (SDB). It was a pleasure to give a lecture on snoring and Obstructive Sleep Apnea (OSA) at the NY Tufts Dental Alumni meeting last night. More dentists need to be educated and involved in the care of this patient population.

03/11/2025

Dear Tufts School of Dental Medicine Alumni Association,

If you haven’t received this announcement, please register and join me on March 20th for an evening of dinner and learning. I’ll be giving a CE credit lecture on Snoring and Obstructive Sleep Apnea.

Hope to see you there!

This is the link to register:

https://rsvp.tufts.edu/2025NYCAmbassadorEvent

03/05/2025

Yesterday, I attended an AI Summit at Columbia University. Beyond research and data analysis, AI’s contributions to the early detection of cancer and Alzheimer’s are incredibly promising. It is rapidly becoming an integral part of our lives.

This morning, I participated in a Grand Round at Mount Sinai’s ENT Department, where the speaker discussed using AI in facial plastic surgery. My primary concern is that AI follows the fundamental computing principle: “Garbage in, garbage out.” Misinformation and contaminated data can compromise research outcomes, clinical trials, and even patient care. I also see a lack of compassion and equity in AI algorithms. I hope to see more focus on these critical areas soon.

12/12/2021

Dr. Momtaheni was a guest speaker at The Greater New York Dental Meeting at Javitz Center on December 1, 2021. Dr. Momtaheni lectured for three hours on the topic of lip lesions which was greatly received. There has never been a lecture for three hours only on lip lesions. This lecture was complied with 40-years of experience in treating lip lesions and anomalies, including congenital, developmental, trauma, infection, allergic reactions and iatrogenic damages.

08/21/2020

Case of The Week: Intermittent Bulging of the Floor of Mouth

Intermittent enlargement of tissue could be due to infection or simply the effect of fluid accumulation like in sialadenitis. If there is an infection, all four cardinal signs of infection-rubor, dolor, calor and tumor, respectively, could be present. However, intermittent enlargement of the salivary gland may lack rubor, dolor and calor while not infected.

A sixty year-old male was referred with a chief complaint of “shriveled“ left floor of mouth. He brought this to his dentist’s attention who replied that he could not see any abnormality. Upon patient’s persistence, he was referred to a periodontist who also reported negative findings. Frustrated with his symptoms and lack of an answer, he was referred to my office.

Upon examination a WD/WN pleasant and level headed man was found in NAD.
Careful examination of his floor of the mouth revealed an elevation of the left floor of the mouth. Figures 1-2 depict the pathology on the left and normal anatomy on the right. There was no salivary flow upon stimulation of the left sublingual gland. When the mouth was closed and the mylohyoid muscle was at its resting position, this enlargement was felt by the patient as shriveled. Panoramic and occlusal films were negative for any calcifications (Figures 3-4). Plain radiography is able to visualize 80-90% of submandibular and sublingual calcifications. In contrast, only 60% of parotid duct stones can be visualized, presumably due to differences in the composition of the secretion of the parent glands. The patient was instructed to milk the gland daily and he was placed on an antibiotic for 7 days. A week later, he reported complete resolution of his symptoms. Stimulation of the left sublingual glad revealed a clear salivary flow and a normal floor of the mouth anatomy (Figure 5).

08/14/2020

Case Of The Week: Before You Pick Up Those Forceps!

COVID 19 has impacted almost all businesses including Dentistry. According to the ADA most dentists are operating at 50% production level. We now see procedures performed with inadequate expertise or training. This is particularly true with extractions of third molars. Before, you pick up the forceps you must ask yourself these questions:
Do I know the possible complications of the procedure?
Am I equipped to address those complications?
What is the patient’s anxiety level and can I control that?
What are the patient’s medical conditions that may adversely affect the planned procedure?
Is there a potential airway problem with this case?
Do I have enough malpractice coverage in the case of catastrophic complications?
Is there an expert near me to help me out of the emergency complications?

A sixty year-old obese male, ASA IIII, with a history of severe sleep apnea and neck circumference of more than 17” was referred for evaluation after failed attempt to remove tooth #16.
On examination tooth # 16 was dangling from the roof of the mouth with torn palatal mucosa, fractured tuberosity and an oro-antral communication (Figure1-3). A panoramic X-ray was taken. The arrow delineate the line of the tuberosity fracture (Figure 4). Since the patient had severe sleep apnea, he was recommended a hospital admission for treatment.

08/08/2020

Case of The Week: Consequences of Poorly Monitored TAD Supported Expansion

Transverse deficiency of the maxilla is a common presentation of maxillary hypoplasia. Correction of this condition is not only a fundamental part of orthodonic treatment but also an important aspect of air way management. As we all remember, maxillary bone contributes to the anatomy of nasal airway. In children, palatal expansion can be achieved by conventional orthodontics. In a severe form, Rapid Palatal Expansion, RPE, can be utilized (Figure 1). In adults however, RPE can result in dehiscence of the buccal cortical plates leading to periodontal disease leading to tooth loss (Figure 2). Therefore, a surgical RPE is recommended. This is a form of osteogenesis over a few weeks to develop expanded soft and hard tissue. (Figure 3). To avoid dental expansion, TAD Supported Expander has been employed (Figure 4). However, if not monitored, the maxilla can be expanded to the full width of the screw.

A 40 year-old male had failed orthognathic surgery with transverse collapse of the maxillary arch. To correct the situation, he was advised to have TAD Supported Expander (Figure 5). Subsequently, he found himself with tremendous over expansion and malocclusion (Figures 6-8). He was referred to an orthodontist to remove the appliance and initiate a pre-sugical orthodonic treatment. The plan is to perform LeFort I segmental osteotomy in the near future.

08/01/2020

Case of The Week: Management of LeFort I Fixation In a Thin and Hypoplastic Maxilla

Within the last 30 years, rigid fixation has revolutionized a wide range of treatment procedures in cranio-maxillofacial surgery. Rigid fixation allows for a three-dimensional reconstruction of the facial skeleton. Prior to advent of rigid fixation, suspension wires were used in conjunction with intra-ossious wire fixation (Figure 1). Rigid fixation was initially introduced for treatment of bone fractured. Before several important modifications on plating and screw design titanium mesh was employed (Figure 2). During this time Steinman pins were also used ( Figure3). Despite variety of plating systems the problem of utilization of rigid fixation in hypoplastic maxilla has remained unsolved.

A 2o year-old female with Class III skeletal malocclusion was referred for treatment. However, her pre-op CBCT scan clearly demonstrated very thin and hypoplastic maxilla ( Figure 4). After placement of 1.7 mm plating in the left preform aperture, the posterior plating near the maxillary buttress proved to be unreliable. Therefore, a 24 gauge wire was suspended from malar bone to the mandible (Figure 5). In more severe cases the rigid fixation can be completely
abandoned and can be primarily relied on wires fixation (Figure 6).

07/26/2020

Case of The Week: Option of Septoplasty and Sinus Polypectomy During LeFort I Osteotomy

LeFort I and septoplasty was reported previously in “Case of The Week.” Last week also I reported advantages of IMF for correction of prognathism. This week our case of the week is a 19 year-old female with maxillary hypoplasia,
Mandibular prognathism, and severe nasal septal deviation leading to mouth
breathing. Figure 1 depicts an axial view of the nasal airway with significant airway obstruction. There is also a maxillary nasal polyp. The polyp is infected and
giving the patient post nasal drip symptom. Since we planned an IMF, restoring her nasal breathing simultaneously was of Paramont importance. We could have done this pre-orthognathic surgery and added an additional hospitalization for septoplasty. But this adds the risk of damaging the septoplasty repair during
intubation for orthognathic surgery. Therefore, the best option in this case was to
Plan for simultaneous LeFort I and septoplasty (Figure 2). In Figure 3, blue arrow depicts maxillary sinus, yellow arrow indicates ANS and green arrow shows exposed nasal cartilage after a partial resection.

The patient did well post-op and was discharged s/p LeFort I, IVRO, septoplasty and polypectomy less than 24 hours with corrected malocclusion and a patent nasal airway.

07/25/2020

Case of The Week: Option of Septoplasty and Sinus Polypectomy During LeFort I Osteotomy

LeFort I and septoplasty was reported previously in “Case of The Week.” Last week also I reported advantages of IMF for correction of prognathism. This week our case of the week is a 19 year-old female with maxillary hypoplasia,
Mandibular prognathism, and severe nasal septal deviation leading to mouth breathing. Figure 1 depicts an axial view of the nasal airway with significant airway obstruction. There is also a maxillary nasal polyp. The polyp is infected and giving the patient post nasal drip symptom. Since we planned an IMF, restoring her nasal breathing simultaneously was of Paramont importance. We could have done this pre-orthognathic surgery and added an additional hospitalization for septoplasty. But this adds the risk of damaging the septoplasty repair during
intubation for orthognathic surgery. Therefore, the best option in this case was to Plan for simultaneous LeFort I and septoplasty (Figure 2). In Figure 3, blue arrow depicts maxillary sinus, yellow arrow indicates ANS and green arrow shows exposed nasal cartilage after a partial resection.

The patient did well post-op and was discharged s/p LeFort I, IVRO, septoplasty and polypectomy less than 24 hours with corrected malocclusion and a patent nasal airway.

07/18/2020

Case of The Week: Predictability of IVRO

Among the many advantages of IVRO, predictability of the procedure is rather impressive. This can be achieved only by avoiding stripping and exposing the posterior border of ramus and limiting alteration of masseteric and medial pterygoid muscle attachments. Therefore, optimal blood supply to the proximal segment and musculature support for the TMJ will be preserved. Also, IVRO does not require rigid fixation. This prevents iatrogenic misplacement of the condyle in the glenoid fossa.

A 20 year-old male was operated on five weeks ago for correction of his prognathia and maxillary horizontal deficiency. His deformity was addressed with LeFort I and IVRO. This week his IMF was removed and an excellent autorotation of the mandible into the surgical stent was observed. Subsequently, the stent and IVY loops were removed. Figures 1-2 depict before and after occlusion. Post-op panorex shows well healed osteotomies and normal condylar position in the glenoid fossa (Figure 3).

Address

630 5th Avenue 1868
New York, NY
10020

Opening Hours

Monday	9am - 5pm
Tuesday	9am - 5pm
Wednesday	9am - 5pm
Thursday	9am - 5pm
Friday	9am - 5pm

Telephone

+12129699133

Website

http://www.drmomtaheni.com/

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