Diamond Invisalign Provider
The highest tier of Invisalign certification, awarded to clinicians who have successfully treated the most cases per year.
Orthodontist in Riyadh · 25+ Years of Experience
World-class orthodontic care in the heart of Riyadh
Dr. Abdulnasser Almahmoud is a board-certified orthodontist offering Invisalign, Spark, and Damon treatments for adults and children at Meras Clinic, As Sahafah.
Recognized expertise, internationally
Recognized expertise, internationally
Top-tier provider status from the world's leading orthodontic systems — earned through case volume and clinical outcomes.
Sapphire Elite Spark Provider
Premier status with Spark Clear Aligners, recognizing excellence in clear aligner treatment.
Premier Damon Provider
Recognized expert in the Damon Smile System — low-friction, self-ligating braces.
Board-Certified Orthodontist
Specialized board certification in orthodontics and dentofacial orthopedics, with 25+ years in practice.
Treatments we offer
Every smile is different. We use the world's leading orthodontic systems to design a treatment that fits your goals, lifestyle, and timeline.
Invisalign Clear Aligners
Diamond-tier Invisalign treatment — virtually invisible aligners for adults and teens.
Learn moreDamon Self-Ligating Braces
Premier Damon System — faster results with low-friction, tie-less braces.
Learn moreSpark Clear Aligners
Sapphire Elite tier — clear aligners that resist staining and stay invisible longer.
Learn moreAdult Orthodontics
Discreet, lifestyle-friendly options for professionals and adults seeking lasting smile correction.
Learn morePediatric & Teen Orthodontics
Early intervention and growth-guidance treatments tailored for children and teens.
Learn moreBlog
Latest articles
Insights on modern orthodontics — clear aligners, digital treatment, and caring for your smile.
9 min read
Class I Malocclusion: When the Jaw Bones Are Sound but the Teeth Are Misaligned
In Class I malocclusion the jaws sit in a good relationship — the problem is in how the teeth are arranged. Learn about crowding, spacing, crossbite, and protrusion, the treatment options, and why retainers matter.
Read article7 min read
What Is Class II Malocclusion (Overjet) and How Is It Treated?
Class II malocclusion is more than 'protruding upper teeth.' Learn its dental and skeletal causes, how it affects the smile and chewing, and the treatment options for children and adults.
Read article6 min read
What Is Class III Malocclusion (Underbite) and How Is It Treated?
Class III malocclusion — an underbite or protruding lower jaw — affects more than your teeth. Learn the causes, the signs to watch for, and the treatment options for children and adults.
Read article