Key Takeaways
If you are a foreign resident or medical tourist visiting a dental clinic in Gangseo-gu, language support is not guaranteed. Each clinic handles English support differently, so call ahead or check the clinic’s booking page to confirm whether an English-speaking consultation is available before your visit. Bring your passport, any dental X-rays or records, and a list of current medications.
According to the collected data, the two clinics that stand out most for cavity treatment in Gangseo-gu are 서울루다치과의원 (Seoul Ruda Dental Clinic) and 365서울원탑치과의원 강서본점 (365 Seoul One Top Dental Clinic, Gangseo Main Branch). Seoul Ruda Dental Clinic has 789 Naver reviews and 2,376 Kakao reviews, for a total of 3,165, with a Kakao rating of 4.8. 365 Seoul One Top Dental Clinic, Gangseo Main Branch has 2,288 Naver reviews and 167 Google reviews, for a total of 2,455, with a Google rating of 4.9. If you look only at ratings, 마곡베스트치과의원 (Magok Best Dental Clinic) is very high with a Kakao rating of 4.9 and a Google rating of 5, but its public review count is relatively small at 1,356. For cavity treatment costs, reference ranges are: covered amalgam and glass ionomer, KRW 10,000–30,000; adult non-covered resin, KRW 80,000–150,000; inlay, KRW 250,000–500,000; and crown, KRW 350,000–800,000.
Methodology
This summary is based on a comparison of five dental clinics in Gangseo-gu using 3,413 Naver Place visitor reviews, 3,920 Kakao Map reviews, and registration data from the Health Insurance Review & Assessment Service (HIRA). Evaluation criteria were platform ratings, public review counts, HIRA-registered dental specialist counts and departments, accessibility, office hours, and actual visitor review content. The average Kakao Map rating across the five clinics was 4.3. Because each clinic has different public review counts by platform, it is safest to look at ratings and review counts together.
서울루다치과의원 (Seoul Ruda Dental Clinic)
Seoul Ruda Dental Clinic has 789 Naver reviews, 2,376 Kakao reviews, a Kakao rating of 4.8, and a Google rating of 4.7, so both reviews and ratings are consistently strong. According to HIRA registration, the listed departments are oral medicine, oral and maxillofacial surgery, pediatric dentistry, oral and maxillofacial radiology, preventive dentistry, orthodontics, conservative dentistry, prosthodontics, periodontics, and integrated dentistry. One cone-beam CT unit is registered. Actual reviews repeatedly mention kind explanations, fast appointment handling, and satisfying cavity treatment consultations.
After booking a general check-up and cavity treatment consultation, I was taken in immediately. This is the friendliest dental clinic I have visited — they explained everything in detail, the treatment was painless, and there was no overtreatment.
I was nervous about having my wisdom tooth pulled, but they explained everything one by one while looking at the X-ray, so I felt relieved. They also gave careful aftercare instructions. Very satisfied.
Located 353m from Exit 3 of Magok Station (Line 5), public transit access is convenient. Office hours: Mon, Wed, Thu, Fri 09:30–18:30; Tue 09:30–20:00; Sat 10:00–14:00; Sun 10:00–16:00. No lunch-break data was available. Reservations, parking, Wi-Fi, waiting area, mobile payment, separate male/female restrooms, walk-in reception, and outreach visit services are listed. Before visiting, check appointment availability and parking hours. From a cavity treatment perspective, conservative dentistry and integrated dentistry are both registered, so it is an easy place to start with a consultation for basic cavity care; it is also worth considering for people thinking about resin and inlay restorations.
Practical tip: Even if the cavity pain is not severe, write down where the pain is and any previous treatment history before your consultation. It will make the dentist’s explanation easier to follow.
마곡베스트치과의원 (Magok Best Dental Clinic)
Magok Best Dental Clinic has very high ratings: Kakao 4.9 and Google 5. It has 1,354 Kakao reviews and 2 Google reviews, for 1,356 public reviews in total. The HIRA specialist count is listed as not available, and detailed department registration data were not provided. Actual reviews frequently mention root canal retreatment, cavity treatment, painless anesthesia, and kind explanations.
I ended up starting root canal retreatment, and the director kindly explained the treatment direction, process, and prognosis. The anesthesia was fast and painless, which was great.
Cavities that my previous clinic had glossed over were all carefully treated, so it could be handled simply. Prices are really, really reasonable.
Address: 서울 강서구 마곡중앙5로1길 20 보타닉비즈타워 310호 (20 Magokjungang 5-ro 1-gil, Botanic Biz Tower Suite 310, Gangseo-gu, Seoul). It is 203m from Exit 1 of Magoknaru Station (Line 9/Airport Railroad). Office hours: Mon, Thu 10:00–20:30; Tue, Fri 10:00–19:00; Wed 13:00–19:00; Sat 09:30–14:30. No lunch-break data was available. Reservations, parking, Wi-Fi, waiting area, mobile payment, and separate male/female restrooms are confirmed. Before your visit, check which weekdays offer late-evening treatment to fit your schedule. If you are thinking about cavity treatment, a conservative care consultation for resin or inlay is a practical first step; if you have pain, ask whether root canal retreatment is possible. For costs, adult resin is non-covered at KRW 80,000–150,000 and inlay at KRW 250,000–500,000.
Practical tip: If an old treatment site is hurting, make a note of when the pain started. It will help you understand the diagnosis explanation.
365서울원탑치과의원 강서본점 (365 Seoul One Top Dental Clinic, Gangseo Main Branch)
365 Seoul One Top Dental Clinic, Gangseo Main Branch has 2,288 Naver reviews and 167 Google reviews, for 2,455 total, and a Google rating of 4.9. According to HIRA, there are 4 integrated dentistry specialists, 2 oral and maxillofacial surgery specialists, 1 orthodontics specialist, and 1 prosthodontics specialist. Registered departments include integrated dentistry, oral and maxillofacial surgery, orthodontics, prosthodontics, oral medicine, oral pathology, pediatric dentistry, oral and maxillofacial radiology, preventive dentistry, conservative dentistry, and periodontics. Two cone-beam CT units are confirmed. Its broad department coverage and clearly documented specialist information are strengths for cavity treatment.
New patient, general treatment, check-up/scaling. After booking, I waited less than 10 minutes. From reception through consultation and treatment, I was guided by kind staff and the explanations were detailed.
I have been coming for years. They are kind, there is no overtreatment, and the clinic is clean — very satisfied.
Located 74m from Exit 8 of Hwagok Station (Line 5). Office hours: Mon–Fri 09:30–20:00; Sat 09:30–17:00; Sun 09:30–17:00. No lunch-break data was available. Reservations, parking, Wi-Fi, mobile payment, and separate male/female restrooms are confirmed. Before visiting, check whether weekend and evening treatment are both available, and ask about same-day appointments. For cavity treatment, this is a good place to discuss cases that may progress from conservative treatment to root canal treatment. The presence of two CT scanners is also worth noting if imaging is needed. For costs, ask for the covered range for early-cavity amalgam/glass ionomer and the non-covered range for adult resin separately.
Practical tip: If a tooth has repeated pain, mention when that tooth was previously treated during your check-up. This can be helpful.
서울믿음치과의원 (Seoul Trust Dental Clinic)
Seoul Trust Dental Clinic has a Kakao rating of 5 and a Google rating of 4, so the ratings themselves are good, but the public review count is only 3 (1 Kakao and 2 Google). The HIRA specialist count is not available. Take the rating as a reference, but keep in mind that the sample is very small. Actual reviews mention cavity resin treatment, painless anesthesia, and wisdom tooth treatment.
General treatment: cavities, gums, root canals, cosmetic prostheses, wisdom teeth, etc. After booking, I was taken in immediately. This was my second visit and I had resin filling treatment for cavities. The anesthesia was painless and the doctor was extremely kind.
I booked for my wisdom tooth and was treated right away. The staff were kind, and the wisdom tooth was pulled quickly in one go.
Located 67m from Exit 4 of Kkachisan Station (Lines 2 and 5), accessibility is good. Office hours: Mon 09:30–20:30; Tue 09:30–18:30; Wed 09:30–20:30; Thu 09:30–18:30; Fri 09:30–18:30; Sat 10:00–14:00; Sun 10:00–14:00. No lunch-break data was available. Reservations, parking, Wi-Fi, and separate male/female restrooms are confirmed. Before your visit, check Saturday and Sunday hours; an appointment-based visit is recommended. For cavity treatment, resin treatment is directly mentioned in reviews, so it is useful for an early-cavity consultation, but because the public review sample is small, it is better to compare a few clinics before deciding. Adult resin can be estimated in the KRW 80,000–150,000 range.
Practical tip: When booking, mention whether the symptom is more like a cavity or whether you’re not sure if root canal treatment is needed. This can make your appointment flow more clearly.
드림위드치과의원 발산역점 (Dream With Dental Clinic, Balsan Station Branch)
Dream With Dental Clinic, Balsan Station Branch has 336 Naver reviews, 189 Kakao reviews, and 2 Google reviews, for 527 public reviews in total, with a Kakao rating of 2.6. According to HIRA, one integrated dentistry specialist is registered. Registered departments include integrated dentistry, oral medicine, oral pathology, oral and maxillofacial surgery, pediatric dentistry, oral and maxillofacial radiology, preventive dentistry, orthodontics, conservative dentistry, prosthodontics, and periodontics. One cone-beam CT unit is registered. The presence of both pediatric dentistry and conservative dentistry makes the cavity-treatment consultation points clear.
A filling came out while I was eating, so I went in urgently. They treated me quickly with no waiting.
The director and staff are kind, the treatment was painless, and I trust them.
Address: 서울 강서구 강서로 385 우성에스비타워 6층 (6F, Wooseong SB Tower, 385 Gangseo-ro, Gangseo-gu, Seoul). It is 126m from Exit 2 of Balsan Station (Line 5). Office hours: Mon, Tue, Wed, Thu 10:00–20:30; Fri 10:00–19:00; Sat 10:00–14:30. No lunch-break data was available. Reservations, parking, Wi-Fi, separate male/female restrooms, and group visits are listed. Before your visit, be sure to check appointment availability and current waiting. For cavity treatment, this clinic can be useful when you need immediate care for a lost filling or sudden pain. Whether resin, inlay, or crown is the right option should be confirmed after a diagnosis. Costs vary widely depending on the treatment scope, so ask for the estimated total during the consultation.
Practical tip: If a restoration falls out while you are eating, keep the piece and bring it to your appointment. It can help with treatment.
Comparison at a Glance
| Dental Clinic | Naver Rating | Kakao Rating | Google Rating | Total Reviews | Dental Specialists | Location | Strength |
|---|---|---|---|---|---|---|---|
| 서울루다치과의원 | - | 4.8 | 4.7 | 3,165 | Not confirmed | Magok Station (Line 5) Exit 3, 353m | Largest review count; broad departments |
| 마곡베스트치과의원 | - | 4.9 | 5 | 1,356 | Not available | Magoknaru Station (Line 9/Airport Railroad) Exit 1, 203m | Very high ratings; cavity treatment mentions |
| 365서울원탑치과의원 강서본점 | - | - | 4.9 | 2,455 | 8 specialists | Hwagok Station (Line 5) Exit 8, 74m | Most clearly documented specialists; 2 CT units |
| 서울믿음치과의원 | - | 5 | 4 | 3 | Not available | Kkachisan Station (Lines 2/5) Exit 4, 67m | Good accessibility; resin treatment review |
| 드림위드치과의원 발산역점 | - | 2.6 | - | 527 | 1 specialist | Balsan Station (Line 5) Exit 2, 126m | Evening treatment; includes conservative dentistry |
Cavity Treatment Dental Clinic Selection Checklist
- Whether the cavity depth is explained — First confirm whether resin is possible or whether an inlay or crown is needed.
- Pain control method — Look at how comfortable the anesthesia is and how the clinic handles pain during treatment.
- Treatment scope disclosure — Check whether the possibility of additional treatment and the expected number of visits are explained in advance.
- Cost transparency — Listen carefully to the differences between covered and non-covered items and between materials.
- Conservative dentistry department — Check whether there is a department related to cavity and restorative treatment.
- Imaging equipment — Confirm whether X-ray or cone-beam CT equipment is available.
- Booking and waiting — Understand how long you are likely to wait after booking an appointment.
- Parking and accessibility — Consider the distance from the station and whether parking is available.
- Revisits and follow-up — Check whether it is easy to return if you have pain or a restoration falls out after treatment.
- Explanation style — Look at real reviews to see whether the clinic explains things clearly without overtreatment.
Warning Signs to Watch For
First, if a clinic recommends a large treatment right away without explaining the cost of cavity treatment, ask again before proceeding.
Second, clinics that do not explain the difference between covered and non-covered items or material options are difficult to compare.
Third, if the review count is very small but the rating is very high, check whether the sample size is sufficient.
Fourth, if office hours and the booking process are unclear, you may be inconvenienced during sudden pain.
Frequently Asked Questions
What should I check first when choosing a cavity treatment dental clinic in Gangseo-gu?
Look at review counts and ratings together, and check whether there are actual reviews about cavity treatment. Then check the presence of a conservative dentistry department, office hours, and accessibility.
How much should I expect to pay for cavity treatment?
Amalgam and glass ionomer are covered at about KRW 10,000–30,000. Resin is covered at about KRW 20,000–50,000 for permanent teeth in children aged 12 and under; adults pay the non-covered rate of KRW 80,000–150,000. Inlay is KRW 250,000–500,000, and crown is KRW 350,000–800,000.
Where should I go if I need evening treatment?
Based on the collected data, 365 Seoul One Top Dental Clinic, Gangseo Main Branch; Dream With Dental Clinic, Balsan Station Branch; and Seoul Trust Dental Clinic have evening hours. However, whether same-day appointments are available should be checked separately.
Are clinics with more reviews always better?
Not always. A larger review count gives you more real patient experiences to consider. Seoul Ruda Dental Clinic and 365 Seoul One Top Dental Clinic, Gangseo Main Branch have especially large public review counts, which makes comparison easier.
If my cavity isn’t severe, will resin be enough?
It can be, but it depends on the cavity’s depth and location. Do not decide from reviews alone; get a diagnosis and listen to whether resin, inlay, or crown is appropriate.
Can I get an English-language consultation at Gangseo-gu dental clinics?
The data used in this article does not confirm which clinics have English-speaking staff. Language support varies by clinic, so contact each clinic by phone or check its booking page before making an appointment.
Final Thoughts
When choosing a cavity treatment dental clinic in Gangseo-gu, do not look only at ratings. It is important to consider the actual review count, HIRA-registered specialist information, accessibility, and office hours. Based on the collected data, Seoul Ruda Dental Clinic and 365 Seoul One Top Dental Clinic, Gangseo Main Branch are the easiest to compare first because of their review volume and information transparency, while Magok Best Dental Clinic is worth a closer look because of its especially high ratings. Medical outcomes can vary depending on individual conditions, so make your final treatment decision based on an in-person consultation with the dental team. Last updated: 2026-08-20