Meet the team

Meet the Team Paddington Rosalie Brisbane

Meet the team

Our team is friendly and professional and focused on providing you and your family with the highest level of care and service. We are happy and conscientious and always strive to make your visit with us a positive, comfortable and rewarding experience.

Our dentists, Drs Nicolie Jenkins, Sean Crookes and Dr Sifat Khan are all members of the Australian Dental Association. Our Oral Health Therapists, Marcelle Johnson and Kristin Trafford-Wiezel are members of the Oral Health Therapists Association Queensland. As Oral Health Therapists, they can provide a broad range of preventive oral health treatments and advice for patients of all ages, as well as treatments for children, including sealants and fillings.

Meet the Team Paddington Rosalie Brisbane

Dr Sean Crookes

Co-founding Dentist

Dr Sean Crookes graduated from the University of Queensland in 1993 with a Bachelor of Dental Science. Sean has worked in both Australia and the United Kingdom, gaining valuable experience working in private dental practices. During this period, he spent much of his time planning his ideal practice.

Sean and his wife, Nicolie, returned to Australia with the vision of opening a modern dental practice that offers first class service, and in 2002, he realised this dream when they opened the doors to Crookes & Jenkins Dental.

Sean is dedicated to his patients’ oral health care needs and spends quality time with all of his patients to explain treatments and procedures and share the passion of his work. He enjoys educating people on the many areas of oral health and relishes in the positive feedback and wonderful results he experiences every day.

Sean regularly updates his skills by attending numerous continuing education courses throughout the year and is also a member of a dental study group where he has previously held the role of President. He is also actively involved with a number of charities and associations giving time and resources to help enrich our local community and help those less fortunate who live overseas. He is a father and family man and loves sharing time with his wife and son.

In his spare time, Sean enjoys maintaining his garden, honing his skills in art and sculpture, bushwalking, fly fishing and taking long walks with his Bull Mastiff X Buster.

Meet the Team Paddington Rosalie Brisbane

Dr Nicolie Jenkins

Co-founding Dentist

Dr Nicolie Jenkins was born in Brisbane and spent her adolescent years in Moranbah in North Queensland with her family.

Nicki returned to Brisbane to study at the University of Queensland and in 1993, graduated with a Bachelor of Dental Science.

Nicki’s experience enables Crookes and Jenkins Dental to be a practice which provides patients with a personal and friendly service. Working with Sean to provide a dental practice that is both relaxing and modern, they believe that their patients should be treated as they would wish to be treated themselves.

Nicki has a relaxed and calming persona, which all of her patients love, and her gentleness is carried through to her work. She instantly puts her patients at ease and in fact many fall asleep in the chair! Nicki also attends continuing education courses on offer throughout the year.

Nicki is the proud mother of her son Micael, who was born in May 2008. She is passionate about singing in her spare time and enjoys performing with two local choirs and the many concerts put on throughout the year. She also volunteers in a number of community organisations helping to enrich lives both locally and overseas.

Meet the Team Paddington Rosalie Brisbane

Dr Sifat Khan


Sifat graduated with a Bachelor of Oral Health from the University of Queensland and worked at Crookes and Jenkins as an Oral Health Therapist.

Sifat then went on to further study dentistry and graduated from Griffith University, with a Bachelor of Oral Health in Dental Science and Master of Dentistry. She has worked as a dentist both in Brisbane and Sydney, gaining valuable experience across several dental practices.

Her goal is to provide the highest standard of care to patients with a personal touch. She spends quality time with all her patients to explain treatment plans and procedures to achieve the best possible outcome. Given her interest in all aspects of dentistry, she continues to engage in professional courses throughout the year. She is friendly and ensures all her patients are comfortable in her care.

During her spare time, she enjoys spending time with her family and friends, trying out different cuisines and likes travelling.

Along with her native English, Dr Sifat also speaks Hindi and Urdu fluently.

Meet the Team Paddington Rosalie Brisbane

Marcelle Sayer

Oral Health Therapist

Marcelle graduated from The University of Adelaide in 2006 as an Oral Health Therapist, having completed a Bachelor of Oral Health. She has worked extensively across both private and public dental health care settings in Queensland, providing preventive dental treatment to children and adults. Marcelle was a University Lecturer and Course Coordinator at The University of Queensland for five years and an Educational Consultant for dental instrument company Hu Friedy before commencing her role as an Oral Care Consultant with Colgate in 2017. Marcelle is a mum and enjoys time at home with her family, cooking, gardening, pottery, yoga and weekends spent with friends.

Meet the Team Paddington Rosalie Brisbane

Kristin Trafford-Wiezel

Oral Health Therapist

Kristin is a dual trained Dental Therapist and Dental Hygienist, who graduated from The University of Queensland in 2006. Since then, she has worked in both public and private health settings in Queensland and Western Australia. Kristin joined the team at Crookes and Jenkins at the beginning of 2021 after returning to Queensland and takes great satisfaction in the opportunity to build relationships with our patients, to assist them in achieving positive oral health outcomes. In her spare time Kristin enjoys spending time with her young family, including her all-important and overly catered for fur child.

Meet the Team Paddington Rosalie Brisbane

Alison Daczynski

Practice Manager

Alison joined the team at Crookes and Jenkins Dental in early 2014. Alison has enjoyed a career in the dental profession since 2003.  Alison has extensive experience in all aspects of general dentistry and speciality dentistry. In late 2016 Alison completed her Diploma in Professional Practice Leadership, providing her with the knowledge and skills to manage the day to day running of the practice. As Practice Manager, Alison believes in providing personal quality care to patients and catering for their individual needs.

Away from the practice she enjoys spending time with her husband and young son, cooking and keeping fit and healthy.

Meet the Team Paddington Rosalie Brisbane

Dimity Annett

Back Office Coordinator

Dimity joined the Crookes & Jenkins Dental team in late 2014 as a Clinical Assistant. Dimity holds a Certificate III in Dental Assisting and is working towards her Certificate IV. She has enjoyed a career in the dental industry since 2011.

Interacting with patients and the local community, working with a strong, reliable team & learning everyday are some of the highlights of working at Crookes & Jenkins Dental.

Away from the practice, Dimity enjoys adventuring with her little family and close friends, time spent in nature & with animals, eating yummy food and reading books.

Meet the Team Paddington Rosalie Brisbane


Clinical Assistant

Tiana started with Crookes and Jenkins in early 2022. She is a current dental student, studying at the University of Queensland.

Tiana is eager to be involved in the dental community and enjoys working with such a knowledgable and experienced team. She believes that contributing to the high quality care of patients has been the most rewarding aspect of being at Crookes and Jenkins.

Tiana spends most of her time studying but when she gets free time she enjoys painting, going running and camping at the beach.

Meet the Team Paddington Rosalie Brisbane



Natasha began working at Crookes and Jenkins Dental in early 2023 and is currently studying a double degree at Queensland University of Technology.

Natasha has been eagerly learning about the dental industry through interacting with our patients, dentists, and oral health therapists. In the year since she joined the practice, she has learnt how to provide the best care to every patient and to ensure their needs are met and known to the practitioners. Through the aid and tutelage of her co-workers and a wonderful work environment, she has been able to provide excellent care for every patient while gaining knowledge and experience within the dental industry.

Outside the clinic, Natasha enjoys new experiences with her friends and being active, such as going to the gym and rock climbing.

Meet the Team Paddington Rosalie Brisbane


Clinical Assistant

Symon joined our team in late 2023 as a Dental Assistant.

Symon has 3 years experience working in dental practice, holds a Certificate III in Dental Assisting and is a qualified Justice of the Peace.

Before becoming a dental assistant, Symon was a travel agent and has travelled to over 26 countries with plans for more.

Symon also plans to continue his career in oral health by completing his Certificate IV and eventually studying dentistry.

Outside of work, Symon loves spending time with family including fur babies, cooking and salsa dancing

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