BASA MALEORAL AND MAXILLOFACIAL SURGERY

BASA MALE — ORAL AND MAXILLOFACIAL SURGERY · ISTANBUL

THE JAWLINE IS
ARCHITECTURE.NOT AN IMPLANT.

Jaw structure, assessed skeleton first.

THE STRUCTURAL APPROACH SEE THE PLANNING

BY PROF. DR. SELÇUK BASA · 40+ YEARS · ORAL AND MAXILLOFACIAL SURGERY

THE STRUCTURAL APPROACH

A jawline does not start with an implant.
It starts with your skeleton.

A jawline plan has to account for bite, airway and long-term stability.
01 — POSITIONSkeleton before surface

If the mandible or maxilla sits in the wrong position, no implant can fix it — it can only hide it. Orthognathic surgery moves the foundation itself: projection, width, definition and facial thirds are addressed at bone level.

02 — FUNCTIONOcclusion & airway, non-negotiable

Bite and airway are part of the plan. Jaw advancement can enlarge the airway — the same surgery used to treat obstructive sleep apnea.

03 — PRECISIONCustom, when custom is right

Patient-specific implants (PSI), designed on your own CT — to refine the result, not to replace the correction.

JAWLINE SCIENCE

What actually defines a masculine lower face

Forums argue about it in ratios and angles. Surgery answers it in millimetres of bone. These are the structural variables we measure and control:

Sagittal projection

How far the chin and mandible project relative to the upper face — the primary driver of a "weak" or "strong" profile.

Gonial angle & ramus height

The angle behind the jaw and the height of the ramus — together they draw the jawline you see from the side.

Bigonial width

Lower-face width viewed from the front — the frontal counterpart of jawline definition.

Occlusal plane & bite

Rotating or repositioning the jaws changes the lower-face geometry and the bite.

Airway volume

Maxillomandibular position directly changes pharyngeal airway space. Advancing the jaws can enlarge the pharyngeal airway; adding implant volume does not change the airway.

Soft-tissue response & ageing

Bone support is what holds soft tissue up for decades — a variable that influences how soft tissue ages.

DIGITAL SURGICAL PLANNING

Your surgery happens twice. First in software.

Every case is planned in three dimensions on your own CT before surgery. The osteotomies, movements and implant geometry are planned in millimetres before the operating room.

CUSTOM IMPLANTS (PSI)

Patient-specific implants: indications and limits.

PSI adds contour on a correctly positioned skeleton; its dimensions are set by CT-based planning. Over-sized implants carry their own risks.

PSI — JAWLINEGonial angle & jaw border

Aims at sharper gonial definition and a continuous jaw border — milled to your CT anatomy, fixed to bone.

PSI — WIDTHBigonial width

Controlled lateral augmentation where frontal width is deficient — in millimetres decided by planning.

PSI — CHINChin projection & shape

When only contour is missing, a custom implant — or genioplasty — can refine projection and shape.

HOW PSI IS PLANNED

  • PSI designed on your own CT, in proportion to your midface and soft tissue
  • Skeletal repositioning first when position — not volume — is the problem
  • Fixation planned around nerves, roots and sinus anatomy
  • Results measured against function: bite, breathing, sensation, longevity

WHEN PSI IS NOT THE ANSWER

  • The underlying problem is skeletal position that has not been corrected — added volume does not correct position
  • The requested geometry is out of proportion to your own anatomy and soft tissue
  • Clinical examination does not confirm candidacy — candidacy is a medical decision

THE SURGEON

Prof. Dr. Selçuk Basa

Professor of Oral and Maxillofacial Surgery with more than 40 years of experience in the surgical treatment of dentofacial deformities. Specialty training and PhD at Hacettepe University (1986); former Dean of Marmara University Faculty of Dentistry (2004–2007) and former Founding Dean of Bahçeşehir University Faculty of Dentistry (2019–2026); in practice in Nişantaşı, Istanbul since 1994. His work centres on the jaw skeleton, the bite that sits on it and the airway behind it. Separately, as academic research, Prof. Basa develops AI-assisted 3D orthognathic planning software (research stage).

40+ years in oral and maxillofacial surgery 30 papers in SCI journals Former Dean, Marmara University (2004–2007) Former Founding Dean, Bahçeşehir University (2019–2026) SORG Preprosthetic Section Faculty IAOMS Councillor EACMFS member · invited speaker, Athens 2026 AO CMF member

Full academic profile → maxillofacial.com/en/about · Publications → maxillofacial.com/en/publications

Prof. Dr. Selçuk Basa

ETHICS & CANDIDACY

The most important surgical skill is knowing when not to operate.

READING ROOM

Before you decide, understand.

CONTACT

Location and contact

+90 532 781 10 80

In practice since 1994 · Valikonağı Cad. No:97, Nişantaşı, Istanbul · selcuk.basa@maxillofacial.com