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← Orthodontics

Early treatment. Expanders from age 6. The earlier treatment begins, the better and more lasting the results – the bone is still malleable and the palatal sutures have not yet ossified.

Fixed palatal expanders
A narrow palate and a constricted dental arch are among the most common problems in children, leading to crowding, posterior crossbites and difficulty breathing through the nose.
A fixed palatal expander is an appliance mounted on the molars, fitted with a screw activated at home according to the doctor’s instructions. It works by applying continuous, controlled pressure to the palatal suture, gradually widening the upper jaw.
Why from age 6? That is when the first permanent molars erupt – the anchoring pillar for the expander. The palatal suture is still fully active and bone adaptation is fast. Early intervention often eliminates the need for extractions later on.
A key advantage: a fixed appliance – The appliance is fixed – there is nothing to remember to put in. It works 24 hours a day, with no risk of being set aside “for a moment” and forgotten. Especially important for children who are not always ready for the responsibility of a removable appliance.
Hybrid Hyrax / expanders with skeletal anchorage (TADs)
In cases requiring greater expansion of the upper jaw – or where anchorage on the teeth alone is insufficient – we use expanders supported by skeletal mini-implants (TADs, Temporary Anchorage Devices). These are miniature titanium screws placed in the palatal bone in a simple, painless procedure under local anaesthesia.
The Hybrid Hyrax combines tooth-borne arms with a palatal mini-implant. The expanding force acts directly on the bone – bypassing the teeth as intermediaries – which minimises the risk of unwanted tipping.
In older teenagers and adults, when the palatal suture is already partly fused, a skeletally anchored expander is often the only non-surgical method that can effectively widen the upper jaw.
Advantages of the skeletal expander
– Force acting directly on the bone
– Effective in older teenagers and adults
– An alternative to orthognathic surgery
– Mini-implants removed easily and painlessly after treatment
Points to consider
– A minor procedure to place the implants
– Requires particular hygiene around the implant
– Higher cost than a conventional expander
We accompany you on the journey to confidence – guided by holistic diagnostics, natural aesthetics and interdisciplinary care.Take the first stepBook a visitBook a visit

KISS Dental Care is the signature clinic of Dr Maria Jach-Mierzwińska – an orthodontist who refined her craft over the years in Brazil, Lisbon and San Sebastián. Back in Poland, she created a place that combines the best standards of world dentistry with genuine attentiveness to the patient.

A smile in natural harmony.
Children (0–12 years)0104020503We listenWe treatWe analyseWe accompanyWe planAdolescents (12–18 years)Adults (18+)A calm environment, early diagnostics and myofunctional orthodontics.We ask questions and get to know your story and needs.Predictably, safely, comfortably.Bite function, proportions, joints and habits.We stay with you for years.A coherent, interdisciplinary plan, step by step.Discreet braces, smile aesthetics and care tailored to teenagers.We believe a healthy smile is the result of balance between function and aesthetics. The key is harmony and an individual fit for each patient. That is why we start by understanding you.Comprehensive treatment, premium prosthodontics and holistic bite reconstruction.

Care tailored to every stage of life.

Function. Aesthetics. Harmony.

Natural aestheticsYears of pain, one diagnosisShe wanted harmony – not a dramatic makeover. Her smile became soft and harmonious.123Read moreRead more→ More storiesFor the first time he heard a coherent answer to years of joint problems and grinding.Every story is a different journey – always ending in a smile and relief.Anna, 34Marek, 47Patient stories

Journeys to harmony.

We do not change faces.We restore their natural balance.– Dr Maria Jach-Mierzwińska

Take the first step towards health, harmony and confidence.

No pressure, no rush – we will answer your questions and help you plan your visit.Józefa Sierakowskiego 4a, unit 4 03-712 WarsawAddressContact+48 22 266 23 68 recepcja@kissdental.care
1234Holistic diagnosisNatural aestheticsInterdisciplinary teamWe are your guideWe analyse bite function, facial proportions, the jaw joints, breathing and habits – all of these affect health and aesthetics.Bioaesthetics guides our work. We create smiles that do not look “done” – beautiful because they are in harmony with the patient’s face.Orthodontists, prosthodontists, surgeons, hygienists and an ENT specialist – we work together to build a coherent, predictable treatment plan.We guide you step by step – we explain, we show, we support you at every stage. Treatment does not have to be a mystery.
Clinic Team Patients Services Pricing Contact
See directions
Parking next to LIDL, dedicated spaces for KISS patients
Book a visit
WhatsApp Directions Call us Send an e-mail
KISS
← Orthodontics

Early treatment. Expanders from age 6. The earlier treatment begins, the better and more lasting the results – the bone is still malleable and the palatal sutures have not yet ossified.

Fixed palatal expanders
A narrow palate and a constricted dental arch are among the most common problems in children, leading to crowding, posterior crossbites and difficulty breathing through the nose.
A fixed palatal expander is an appliance mounted on the molars, fitted with a screw activated at home according to the doctor’s instructions. It works by applying continuous, controlled pressure to the palatal suture, gradually widening the upper jaw.
Why from age 6? That is when the first permanent molars erupt – the anchoring pillar for the expander. The palatal suture is still fully active and bone adaptation is fast. Early intervention often eliminates the need for extractions later on.
A key advantage: a fixed appliance – The appliance is fixed – there is nothing to remember to put in. It works 24 hours a day, with no risk of being set aside “for a moment” and forgotten. Especially important for children who are not always ready for the responsibility of a removable appliance.
Hybrid Hyrax / expanders with skeletal anchorage (TADs)
In cases requiring greater expansion of the upper jaw – or where anchorage on the teeth alone is insufficient – we use expanders supported by skeletal mini-implants (TADs, Temporary Anchorage Devices). These are miniature titanium screws placed in the palatal bone in a simple, painless procedure under local anaesthesia.
The Hybrid Hyrax combines tooth-borne arms with a palatal mini-implant. The expanding force acts directly on the bone – bypassing the teeth as intermediaries – which minimises the risk of unwanted tipping.
In older teenagers and adults, when the palatal suture is already partly fused, a skeletally anchored expander is often the only non-surgical method that can effectively widen the upper jaw.
Advantages of the skeletal expander
– Force acting directly on the bone
– Effective in older teenagers and adults
– An alternative to orthognathic surgery
– Mini-implants removed easily and painlessly after treatment
Points to consider
– A minor procedure to place the implants
– Requires particular hygiene around the implant
– Higher cost than a conventional expander
We accompany you on the journey to confidence – guided by holistic diagnostics, natural aesthetics and interdisciplinary care.Take the first stepBook a visitBook a visit

KISS Dental Care is the signature clinic of Dr Maria Jach-Mierzwińska – an orthodontist who refined her craft over the years in Brazil, Lisbon and San Sebastián. Back in Poland, she created a place that combines the best standards of world dentistry with genuine attentiveness to the patient.

A smile in natural harmony.
Children (0–12 years)0104020503We listenWe treatWe analyseWe accompanyWe planAdolescents (12–18 years)Adults (18+)A calm environment, early diagnostics and myofunctional orthodontics.We ask questions and get to know your story and needs.Predictably, safely, comfortably.Bite function, proportions, joints and habits.We stay with you for years.A coherent, interdisciplinary plan, step by step.Discreet braces, smile aesthetics and care tailored to teenagers.We believe a healthy smile is the result of balance between function and aesthetics. The key is harmony and an individual fit for each patient. That is why we start by understanding you.Comprehensive treatment, premium prosthodontics and holistic bite reconstruction.

Care tailored to every stage of life.

Function. Aesthetics. Harmony.

Natural aestheticsYears of pain, one diagnosisShe wanted harmony – not a dramatic makeover. Her smile became soft and harmonious.123Read moreRead more→ More storiesFor the first time he heard a coherent answer to years of joint problems and grinding.Every story is a different journey – always ending in a smile and relief.Anna, 34Marek, 47Patient stories

Journeys to harmony.

We do not change faces.We restore their natural balance.– Dr Maria Jach-Mierzwińska

Take the first step towards health, harmony and confidence.

No pressure, no rush – we will answer your questions and help you plan your visit.Józefa Sierakowskiego 4a, unit 4 03-712 WarsawAddressContact+48 22 266 23 68 recepcja@kissdental.care
1234Holistic diagnosisNatural aestheticsInterdisciplinary teamWe are your guideWe analyse bite function, facial proportions, the jaw joints, breathing and habits – all of these affect health and aesthetics.Bioaesthetics guides our work. We create smiles that do not look “done” – beautiful because they are in harmony with the patient’s face.Orthodontists, prosthodontists, surgeons, hygienists and an ENT specialist – we work together to build a coherent, predictable treatment plan.We guide you step by step – we explain, we show, we support you at every stage. Treatment does not have to be a mystery.
Clinic Team Patients Services Pricing Contact
See directions
Parking next to LIDL, dedicated spaces for KISS patients
Book a visit
WhatsApp Directions Call us Send an e-mail